Share this entry

Share this page

antheridium

Syllabification: an·ther·id·i·um
Pronunciation: /ˌanTHəˈridēəm
 
/

Definition of antheridium in English:

noun (plural antheridia /-THəˈridēə/)

Botany
The male sex organ of algae, mosses, ferns, fungi, and other nonflowering plants.
Example sentences
  • Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed.
  • The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced.
  • Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk.

Origin

mid 19th century: modern Latin, from anthera (see anther) + -idium (from the Greek diminutive suffix -idion).

Derivatives

antheridial

1
Pronunciation: /-T͟Həˈridēəl/
adjective
Example sentences
  • The oogonial initial penetrates the antheridial initial and rapidly expands to form the oogonium.
  • Studies on development of antheridia and antheridial dehiscence have been conducted by Davie and Hartman.
  • The latter are much more abundant in the antheridial tufts, where they have somewhat swollen heads.

Definition of antheridium in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day peart
Pronunciation: pərt
adjective
lively; cheerful