head cap

the double-layered caplike structure over the upper two-thirds of the acrosome of a spermatozoon, consisting of the collapsed acrosomal vesicle.

Medical dictionary. 2011.

Look at other dictionaries:

  • Cap — (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st {Cope}.] 1 …   The Collaborative International Dictionary of English

  • Cap in hand — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • Cap money — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • Cap of a cannon — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • Cap of liberty — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • Cap of maintenance — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • Cap paper — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • Cap rock — Cap Cap (k[a^]p), n. [OE. cappe, AS. c[ae]ppe, cap, cape, hood, fr. LL, cappa, capa; perhaps of Iberian origin, as Isidorus of Seville mentions it first: Capa, quia quasi totum capiat hominem; it. capitis ornamentum. See 3d {Cape}, and cf. 1st… …   The Collaborative International Dictionary of English

  • cap — cap1 [kap] n. [ME cappe < OE cæppe & ML cappa < LL cappa, a cape, hooded cloak] 1. any closefitting head covering, brimless or with only a front visor, and made of wool, cotton, etc., as a baseball cap or overseas cap, or of muslin or lace …   English World dictionary

  • Cap Enrage — Cap Enragé Le Cap Enragé ((en): Cape Enrage) est un cap situé au sud de la province canadienne du Nouveau Brunswick, dans le comté d Albert. Le cap s avance dans la baie de Chignectou. Il comprends deux pointes, soit la pointe Intérieure et la… …   Wikipédia en Français

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