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Meaning of "pulvinus" in the English dictionary

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DICTIONARY
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ETYMOLOGY OF THE WORD PULVINUS

From Latin: cushion.
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Etymology is the study of the origin of words and their changes in structure and significance.
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PRONUNCIATION OF PULVINUS

pulvinus  [pʌlˈvaɪnəs] play
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GRAMMATICAL CATEGORY OF PULVINUS

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Pulvinus is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES PULVINUS MEAN IN ENGLISH?

Pulvinus

A pulvinus is a joint-like thickening at the base of a plant leaf or leaflet that facilitates growth-independent movement. It consists of a core of vascular tissue within a flexible, bulky cylinder of thin-walled parenchyma cells. A pulvinus is also sometimes called a geniculum. Pulvinar movement is caused by changes in turgor pressure leading to a contraction or expansion of the parenchyma tissue. The response is initiated when sucrose is unloaded from the phloem into the apoplast. The increased sugar concentration in the apoplast decreases the water potential and triggers the efflux of potassium ions from the surrounding cells. This is followed by an efflux of water, resulting in a sudden change of turgor pressure in the cells of the pulvinus. The process is similar to the mechanism of stomatal closure. Common examples for pulvinar movements include the night closure movement of legume leaves and the touch response of the sensitive plant. Nyctinastic movements are controlled by the circadian clock and light signal transduction through phytochrome.

Definition of pulvinus in the English dictionary

The definition of pulvinus in the dictionary is a swelling at the base of a leafstalk: changes in its turgor pressure cause changes in the position of the leaf.

WORDS THAT RHYME WITH PULVINUS


Antoninus
ˌæntəˈnaɪnəs
Aquinas
əˈkwaɪnəs
Delphinus
dɛlˈfaɪnəs
echinus
ɪˈkaɪnəs
erinus
ɪˈraɪnəs
Flamininus
ˌflæmɪˈnaɪnəs
Gambrinus
ɡæmˈbraɪnəs
interspinous
ˌɪntəˈspaɪnəs
Linus
ˈlaɪnəs
Longinus
lɒnˈdʒaɪnəs
minus
ˈmaɪnəs
nighness
ˈnaɪnəs
Ninus
ˈnaɪnəs
Paulinus
pɔːˈlaɪnəs
Plotinus
plɒˈtaɪnəs
Quirinus
kwɪˈraɪnəs
shiness
ˈʃaɪnəs
sinus
ˈsaɪnəs
spinous
ˈspaɪnəs
vinous
ˈvaɪnəs

WORDS THAT BEGIN LIKE PULVINUS

pulverization
pulverize
pulverizer
pulverous
pulverulence
pulverulent
pulvil
pulvilio
pulvilised
pulvilized
pulvillar
pulvilli
pulvilliform
pulvillus
pulvinar
pulvinate
pulvinated
pulvini
pulvinule
pulwar

WORDS THAT END LIKE PULVINUS

acinus
Albinus
botulinus
Cassius Longinus
Circinus
Cunobelinus
Dominus
Ictinus
laurustinus
Marcus Aurelius Antoninus
Matthias I Corvinus
omega minus
Piscis Austrinus
ricinus
Socinus
terminus
trachinus
uncinus

Synonyms and antonyms of pulvinus in the English dictionary of synonyms

SYNONYMS

Translation of «pulvinus» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF PULVINUS

Find out the translation of pulvinus to 25 languages with our English multilingual translator.
The translations of pulvinus from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «pulvinus» in English.

Translator English - Chinese

叶枕
1,325 millions of speakers

Translator English - Spanish

pulvinus
570 millions of speakers

English

pulvinus
510 millions of speakers

Translator English - Hindi

pulvinus
380 millions of speakers
ar

Translator English - Arabic

وساد
280 millions of speakers

Translator English - Russian

pulvinus
278 millions of speakers

Translator English - Portuguese

pulvino
270 millions of speakers

Translator English - Bengali

কুশন
260 millions of speakers

Translator English - French

pulvinus
220 millions of speakers

Translator English - Malay

Pulvinus
190 millions of speakers

Translator English - German

Pulvinus
180 millions of speakers

Translator English - Japanese

葉枕
130 millions of speakers

Translator English - Korean

pulvinus
85 millions of speakers

Translator English - Javanese

Pulvinus
85 millions of speakers
vi

Translator English - Vietnamese

pulvinus
80 millions of speakers

Translator English - Tamil

இலையின் அடிப்பகுதியில் திண்டு போன்ற புடைப்பு
75 millions of speakers

Translator English - Marathi

पुलविनस
75 millions of speakers

Translator English - Turkish

pulvinus
70 millions of speakers

Translator English - Italian

pulvino
65 millions of speakers

Translator English - Polish

pulvinus
50 millions of speakers

Translator English - Ukrainian

pulvinus
40 millions of speakers

Translator English - Romanian

pulvinus
30 millions of speakers
el

Translator English - Greek

pulvinus
15 millions of speakers
af

Translator English - Afrikaans

pulvinus
14 millions of speakers
sv

Translator English - Swedish

pulvinus
10 millions of speakers
no

Translator English - Norwegian

pulvinus
5 millions of speakers

Trends of use of pulvinus

TRENDS

TENDENCIES OF USE OF THE TERM «PULVINUS»

The term «pulvinus» is used very little and occupies the 162.253 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Rarely used
24
/100
The map shown above gives the frequency of use of the term «pulvinus» in the different countries.
Principal search tendencies and common uses of pulvinus
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «pulvinus».

FREQUENCY OF USE OF THE TERM «PULVINUS» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «pulvinus» during the past 500 years. Its implementation is based on analysing how often the term «pulvinus» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about pulvinus

EXAMPLES

10 ENGLISH BOOKS RELATING TO «PULVINUS»

Discover the use of pulvinus in the following bibliographical selection. Books relating to pulvinus and brief extracts from same to provide context of its use in English literature.
1
The Power of Movement in Plants
same pulvinus and in different individuals. In the accompanying figures, A and B ( Fig. 64), we have views of the epidermis * in the middle part of the petioles of two seedlings, in which the pulvinus was for this species well developed. They offer ...
Charles Darwin, Sir Francis Darwin, 1897
2
Déliberations Et Mémoires de la Société Royale Du Canada
It therefore follows that this contraction must be stronger along the lower side of the pulvinus in the ratio given, and hence a tendency to curvature of the pulvinus downward. This, though slight, may often be noticed. The tension in the tissue of  ...
‎1887
3
Scientific Memoirs by Officers of the Medical and Sanitary ...
Spreading action in the pinnules of that pinna ; action in its secondary pulvinus ; action in the primary pulvinus, and spreading action in the distal pinna of the affected side ; action in the opposite distal pinna. Spreading action in the pinnules ...
India. Medical department, 1888
4
Mechanism of Movement in Cucurbita, Vitis and Robinia
Wood and Bast 16.50 " " 23.00 " " Parenchyma of Pulvinus 80.65 " " 171.25 " " From this it appears that, leaving the pith altogether out of consideration, as of no mechanical importance, whatever tension is produced in the vascular bundles, ...
David Pearce Penhallow, 1886
5
Charles Darwin's Works: The power of movement in plants
same pulvinus and in different individuals. In the accompanying figures, A and B ( Fig. 64), we have views of the epidomis* in the middle part of the petioles of two seedlings, in whicli the pnlvinus was for this species well developed. They offer ...
Charles Darwin, Sir Francis Darwin, 1896
6
Works of Charles Darwin: The power of movement in plants
hardly be a doubt that the pulvinus was becoming rudimentary and tending to disappear; and this accounts for its great variability in structure and function. ~ In the following table some measurements of the cells in fairly well-developed pulvini ...
Charles Darwin, 1915
7
Plant Electrophysiology: Signaling and Responses
motor cells of the leaflets a coupling between them is necessary. We will discuss and model this coupling between the pulvinus cells. We will also discuss systems of models to achieve such coordinated movement of motor cells in the pulvinus.
Alexander G. Volkov, 2012
8
Photomovement
D.-P. Häder, M. Lebert. turgor-mediated reorientation in space. These tissues are organized in a distinct, well delimited pulvinus. 25.3.2.1 Structural features The pulvinus is strategically located for moving the part of the leaf which it subtends.
D.-P. Häder, M. Lebert, 2001
9
Illustrated Veterinary Anatomical Nomenclature
D 8 Tela subcutanea limbi [Pulvinus limbi, Un]. The subcutaneous tissue of the limbus which may be slightly raised to form a bandlike cushion, Pulvinus limbi. D 9 Corona. The bandlike proximal segment of the claw or hoof deep and distal to ...
Oskar Schaller, Gheorghe M. Constantinescu, 2007
10
Charles Darwin's Collection (18 Books):
Inthese seedlings there couldhardlybe a doubt that the pulvinus was becoming rudimentary andtending to disappear; and this accounts for its great variabilityin structure and function. In thefollowing Table some measurements of the cells in ...
Charles Darwin, 2013

6 NEWS ITEMS WHICH INCLUDE THE TERM «PULVINUS»

Find out what the national and international press are talking about and how the term pulvinus is used in the context of the following news items.
1
How to make the most of house plants
It's common in arrowroots for the base of the leaf to be swollen into something called a pulvinus – that's akin to a knee joint, and allows the plant to move ... «The Guardian, Feb 15»
2
Question Corner
Here changes of potassium flux along the dorsal and ventral cells of the pulvinus due to the far red aerobic phytochromal responses bring about the changes of ... «The Hindu, Mar 14»
3
Snakes And The Brain: How Our Visual Systems Evolved To Protect …
Derived from the Latin pulvinus for “cushion,” the bundle of nuclei sits beneath the thalamus, in the middle of the brain. It's only found in humans, primates, and ... «Medical Daily, Oct 13»
4
Rare fungus found in grounds of Norfolk boarding school
Oak polypore (Buglossoporus pulvinus) was found growing out of an oak tree at Wymondham College. It is only the third time the fungus has been recorded in ... «Norwich Evening News, Sep 13»
5
Sommer, Sonne, Sonnenblume
Diese Bewegung wird von einigen Motorzellen im Pulvinus, einem flexiblen Segment des Stammes unterhalb der Knospe, ausgeführt. Der Blütenkorb zeigt ... «Epoch Times Deutschland, Aug 13»
6
Coming to Their Senses
The case of the drooping Mimosa is due to a group of cells, the pulvinus, that act like mini mechanical pumps forcing water down out of the cells in the leaf. «Wall Street Journal, Jun 12»

REFERENCE
« EDUCALINGO. Pulvinus [online]. Available <https://educalingo.com/en/dic-en/pulvinus>. Apr 2024 ».
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