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acrosomal cap

   Also found in: Dictionary/thesaurus, Legal, Financial, Encyclopedia, Wikipedia 0.01 sec.
cap (kap) a protective covering for the head or for a similar structure; a structure resembling such a covering.
acrosomal cap  acrosome.
cradle cap  crusta lactea.
duodenal cap  the part of the duodenum adjacent to the pylorus, forming the superior flexure.
enamel cap  the enamel organ after it covers the top of the growing tooth papilla.
head cap  the doubled-layered caplike structure over the upper two-thirds of the acrosome of a spermatozoon, consisting of the collapsed acrosomal vesicle.
knee cap  patella.
skull cap  calvaria.

acrosomal cap
n.
A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration. Also called acrosome, head cap.

acrosomal cap, acrosomal head cap.
See acrosome.


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