ink sac
(MOLLUSCA: Cephalopoda)
A pear-shaped body in the wall of the mantle situated near the anus, containing the ink glands which eject a black substance as a defense mechanism.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • Ink sac — Ink Ink, n. [OE. enke, inke, OF. enque, F. encre, L. encaustum the purple red ink with which the Roman emperors signed their edicts, Gr. ?, fr. ? burnt in, encaustic, fr. ? to burn in. See {Encaustic}, {Caustic}.] 1. A fluid, or a viscous… …   The Collaborative International Dictionary of English

  • ink-sac — inkˈ bag or inkˈ sac noun A sac in some cuttlefishes, containing a black viscid fluid • • • Main Entry: ↑ink …   Useful english dictionary

  • Ink sac — An ink sac is an anatomical feature, an ink containing organ of a cephalopod (octopuses, squids and cuttlefish). This sac can release an inky fluid from a duct opening at the base of the siphon in order to confuse its enemy or prey, or as cover… …   Wikipedia

  • ink sac — n. large gland of cephalopods (such as squid, octopus etc.) which contains ink that is ejected to distract predators …   English contemporary dictionary

  • ink sac — the gland discharging into the cloaca of Lophotidae …   Dictionary of ichthyology

  • ink sac — noun : an organ in most cephalopods (as the squid) secreting an inky fluid that can be ejected from a duct opening into the terminal part of the rectum …   Useful english dictionary

  • Ink — Ink, n. [OE. enke, inke, OF. enque, F. encre, L. encaustum the purple red ink with which the Roman emperors signed their edicts, Gr. ?, fr. ? burnt in, encaustic, fr. ? to burn in. See {Encaustic}, {Caustic}.] 1. A fluid, or a viscous material or …   The Collaborative International Dictionary of English

  • Ink bag — Ink Ink, n. [OE. enke, inke, OF. enque, F. encre, L. encaustum the purple red ink with which the Roman emperors signed their edicts, Gr. ?, fr. ? burnt in, encaustic, fr. ? to burn in. See {Encaustic}, {Caustic}.] 1. A fluid, or a viscous… …   The Collaborative International Dictionary of English

  • Ink berry — Ink Ink, n. [OE. enke, inke, OF. enque, F. encre, L. encaustum the purple red ink with which the Roman emperors signed their edicts, Gr. ?, fr. ? burnt in, encaustic, fr. ? to burn in. See {Encaustic}, {Caustic}.] 1. A fluid, or a viscous… …   The Collaborative International Dictionary of English

  • Ink plant — Ink Ink, n. [OE. enke, inke, OF. enque, F. encre, L. encaustum the purple red ink with which the Roman emperors signed their edicts, Gr. ?, fr. ? burnt in, encaustic, fr. ? to burn in. See {Encaustic}, {Caustic}.] 1. A fluid, or a viscous… …   The Collaborative International Dictionary of English

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