Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.
A caplike organelle or saccule derived from Golgi elements that surround the anterior two thirds of the nucleus of a sperm. Enzymes contained within this structure probably facilitate the sperm's penetration of the zona pellucida of the oocyte.
[acro- + G. soma, body]
Farlex Partner Medical Dictionary © Farlex 2012
head cap(hed kap)
A device fitted closely to the skull; used for fixed anchorage in external traction.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012