pollen tube noun
: 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
Learn More About POLLEN TUBE
Seen & Heard
What made you want to look up pollen tube? Please tell us where you read or heard it (including the quote, if possible).