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

First Known Use of pollen tube

1830, in the meaning defined above

Keep scrolling for more

Learn More about pollen tube

Statistics for pollen tube

Time Traveler for pollen tube

The first known use of pollen tube was in 1830

See more words from the same year

More from Merriam-Webster on pollen tube

Britannica.com: Encyclopedia article about pollen tube

Comments on pollen tube

What made you want to look up pollen tube? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a calculated move

Get Word of the Day daily email!

Test Your Vocabulary

Confusing Words—A Quiz

  • alice with tweedle dee and tweedle dum
  • I invented a brand new toaster robot and ______ it "Sir Toasts-a-Lot."
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!