manchette

man·chette

(man-shet'), A conic array of microtubules that invests the nucleus of a spermatid; believed to play a role in shaping the nucleus during spermiogenesis. [Fr. cuff, dim. of manche, sleeve, fr. L. manicae; fr. manus, hand]

manchette

(măn-chĕt′) [Fr., a cuff] A circular band consisting of microtubules around the caudal pole of developing sperm.