Medical Definition of Head cap

1. A collapsed membranous vesicle that covers the anterior part of the nucleus of the spermatozoon, derived from the acrosomal granule; the carbohydrate-rich substance of the cap is associated with hydrolytic enzymes that aid in sperm penetration of the zona pellucida of the ovum. Synonym: head cap. (05 Mar 2000)

Lexicographical Neighbors of Head Cap

headways
headwind
headwinds
headword
headwords
headwork
headworks
heady
head ache
head and neck neoplasms
head and shoulders above
head blight
head botflies
head cabbage
head cabbage plant
head cap (current term)
head cavity
head cold
head count
head covering
head crash
head fold
head for the hills
head game
head gasket
head gate
head home
head honcho
head injuries
head injury

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