pollen tube

noun

Definition of pollen tube

: a tube that is formed by a pollen grain and conveys the sperm nuclei to the embryo sac of an angiosperm or the archegonium of a gymnosperm

Examples of pollen tube in a Sentence

Recent Examples on the Web How many readers could get excited by the fact that a single primrose plant can produce two kinds of flowers, virtually identical but one with a long style (the stalk that channels pollen tubes to the ovary) and one with a short style? David Quammen, The New York Review of Books, "The Brilliant Plodder," 8 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pollen tube.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pollen tube

1830, in the meaning defined above

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The first known use of pollen tube was in 1830

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Cite this Entry

“Pollen tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pollen%20tube. Accessed 16 Jan. 2021.

More from Merriam-Webster on pollen tube

Britannica.com: Encyclopedia article about pollen tube

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