acrosome

ac·ro·some

A a

Definitions of acrosome word

noun acrosome a cap-like structure on the tip of a spermatozoon that releases enzymes on encountering the ovum allowing fusion with the ovum in the sexual reproductive process; this part of the process is known as the acrosome reaction 3
noun acrosome a thin sac usually at the head of a sperm cell containing enzymes which dissolve the protective layers of an egg cell 3
noun acrosome an organelle covering the head of animal sperm and containing enzymes that digest the egg cell coating, thus permitting the sperm to enter the egg. 1
noun acrosome A structure forming the end of the head of a spermatozoon. 1

before 1895

One of the 18% newest English words

1895-1900; < German Akrosoma; see acro-, -some3

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 74% of English native speakers know the meaning and use the word.

This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

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