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etiolation (botany)


the act of causing a plant to develop without chlorophyl by growing it without exposure to sunlight


act noun (acts and actions)

Related to:




Original source:

Princeton WordNet

Usage example:

the etiolation of celery


from French étioler to make pale, probably from Old French estuble straw, from...
(Source: Collins Dictionary)  [more]

All senses of etiolation...

Definition references



a process in flowering plants grown in partial or complete absence of light. It's characterized by long, weak stems; smaller, sparser leaves due to longer internodes; and a pale yellow color. Etiolation increases the likelihood that a plant will reach... (40 of 431 words, pronunciation, 1 image)


Collins Dictionary:

etiolation | etiolate

the act of not exposing a green plant to sunlight so that it will have a whitened appearance | [literary] the act of weakening by preventing the ... (26 of 330 words, 5 definitions, 1 usage example, pronunciations)



etiolate | etiolated [past tense] | etiolating [present participle] | debilitate [synonym, sense-specific] | devitalize [synonym, sense-specific] | enervate [synonym, sense-specific] | enfeeble [synonym, sense-specific] | weaken [synonym, sense-specific] | prostrate [synonym, sense-specific] | ...

to bleach and alter the natural development of (a green plant) by excluding sunlight | to make pale ; to deprive of natural vigor; make feeble (25 of 114 words, 2 definitions, 1 usage example, pronunciations)


American Heritage Dictionary:

etiolate | etiolated [past tense] | etiolating [present participle] | etiolates [3rd-person singular present] | etiolation [noun, related]

[botany] To cause (a plant) to develop without chlorophyll by preventing exposure to sunlight. | To cause to appear pale and sickly | To make weak by ... (25 of 89 words, 4 definitions, 1 usage example, pronunciation)


Oxford Dictionary:

etiolated | feeble [synonym, sense-specific] | etiolation [derived]

[plants] pale and drawn out due to a lack of light | having lost vigour or substance; feeble (17 of 77 words, 2 definitions, 3 usage examples, pronunciations)



etiolation | etiolations [plural]

[botany] growth process of plants grown in the absence of light, characterized by long, weak stems, fewer leaves and chlorosis | [botany] The operation of blanching plants, by excluding the light of the sun; the condition of a blanched plant. |... (39 of 49 words, 3 definitions, 1 usage example)


New World Dictionary:

etiolate | etiolated [past tense] | etiolating [present participle] | etiolation [noun, related]

to cause to be pale and unhealthy | to deprive of strength; weaken | [botany] to blanch or bleach by depriving of sunlight (21 of 44 words, 3 definitions, pronunciation)


Britannica Encyclopedia:

bleach [chemistry]

solid or liquid chemical used to whiten or remove the natural colour of fibres, yarns, paper, and textile fabrics; in textile finishing the bleaching ... (24 of 296 words)


Macmillan British Dictionary:

bleach [verb] | bleached [past tense] | bleaching [present participle] | bleaches [3rd-person singular present]

[transitive] to remove the colour from something with a chemical or through the action of sunlight | [intransitive] to gradually lose colour, for ... (22 of 76 words, 2 definitions, 3 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/bleach 4

bleach [uncountable]

a strong chemical used to kill harmful bacteria or to make coloured things white (14 of 38 words, pronunciation)


Random House Dictionary:

bleach | a bleaching agent [sense-specific]

to make whiter or lighter in color, as by exposure to sunlight or a chemical agent; remove the color from. | [photography] to convert (the silver ... (25 of 76 words, 6 definitions, pronunciation)


Cambridge Dictionary:

bleach [entry 1]

a strong chemical used for cleaning things or removing colour from things (12 of 17 words, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/bleach 1

bleach [entry 2]

to remove the colour from something or make it lighter using chemicals (12 of 21 words, 1 usage example, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/bleach 2

Encarta Dictionary:

bleach | bleaches [plural] | bleached [past tense] | bleaching [present participle]

a chemical that removes or whitens color or staining and also cleans and disinfects | an act of using bleach on something | to clean or whiten ... (25 of 99 words, 4 definitions, pronunciation)

encarta​.msn​.com​/dictionary 1861591114​/definition​.html  [offline]

Etymology references

Collins Dictionary:

etiolation | etiolate

First use: 18th century

Origin: from French étioler to make pale, probably from Old French estuble straw, from Latin stipula



etiolation | etiolations [plural]

Origin: French étiolé, past participle of étioler "to blanch"


Audio references

the Free Dictionary:


Audio 1: North American English pronunciation of "etiolation"

Audio 2: British English pronunciation of "etiolation"

Audio 3: North American English pronunciation of "etiolation" by speech synthesizer


Merriam-Webster Pronunciation:


Audio: North American pronunciation of "etiolation"

www​.merriam-webster​.com​/audio​.php file=etiola​02 word=etiolation

Page last updated: 2013-06-26

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