embryonic shell
(GASTROTRICHA)
That part of the shell formed before hatching.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • shell gland — noun 1. : a looped tubular excretory organ of an entomostracan or the young of many other crustaceans that ends blindly at one extremity and opens to the exterior on or near the second maxilla 2. : a glandular organ in the embryo of many mollusks …   Useful english dictionary

  • Shell — Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The covering, or …   The Collaborative International Dictionary of English

  • Shell bit — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell button — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell cameo — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell flower — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell gland — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell gun — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell ibis — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

  • Shell jacket — Shell Shell, n. [OE. shelle, schelle, AS. scell, scyll; akin to D. shel, Icel. skel, Goth. skalja a tile, and E. skill. Cf. {Scale} of fishes, {Shale}, {Skill}.] 1. A hard outside covering, as of a fruit or an animal. Specifically: (a) The… …   The Collaborative International Dictionary of English

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