acrosome

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acrosome

[′ak·rə‚sōm]
(cell and molecular biology)
The anterior, crescent-shaped body of spermatozoon, formed from Golgi material of the spermatid. Also known as perforatorium.
References in periodicals archive ?
Consolidated's swift resolution of the head cap problem was a key factor in saving Indian Head from closing,' said Roger Smith, technical director of the naval station.
Their new line of Accu-Thrust thrust screws (both threaded, set screw type and headed, socket head cap screw type) will be on display.
Jackson will head CAP from the SGA's new headquarters in Nashville, TN.
A socket head cap screw passes through a clearance hole in the solid hub to the transverse wedge to clamp the shaft securely; the screw can be tightened and released repeatedly without marring shaft or affecting torque transmission.