sessile
    adj 1: permanently attached to a substrate; not free to move
           about; "sessile marine animals and plants" [ant:
           vagile]
    2: attached directly by the base; not having an intervening
       stalk; "sessile flowers"; "the shell of a sessile barnacle is
       attached directly to a substrate" [syn: sessile,
       stalkless] [ant: pedunculate, stalked]

Sessile \Ses"sile\, a. [L. sessilis low, dwarf, from sedere,
   sessum, to sit: cf. F. sessile.]
   1. Attached without any sensible projecting support.
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   2. (Bot.) Resting directly upon the main stem or branch,
      without a petiole or footstalk; as, a sessile leaf or
      blossom.
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   3. (Zool.) Permanently attached; -- said of the gonophores of
      certain hydroids which never became detached.
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