Aciculiform see acicula

aciculum n.; pl. -lums, -la [L. dim. acus, needle] (ANN: Poly-chaeta) A chitinous stiff basal seta or rod supporting the parapodial lobes.

acid gland, poison gland 1. Any of numerous glands secreting acid in many invertebrates. 2. (ARTHRO: Chelicerata) In Araneae, the poison gland. 3. (ARTHRO: Diplopoda) The HCN-secreting glands. 4. (ARTHRO: Insecta) Gland of stinging Hymenoptera. 5. (MOLL: Gastropoda) The salivary gland.

acidic a. [L. acere, to be sour] Acid forming; having the properties of an acid.

acidobiontic a. [L. acere, to be sour; Gr. bion, life] Living in an acid environment. see oxyphilic.

acidophil a. [L. acere, to be sour; Gr. philein, to love] Growing in an acid media. see oxyphilic.

acidophilic, acidophilous a. [L. acidus, sour; Gr. philein, to love] 1. Tolerating acid; aciduric. 2. Staining readily in an acid stain.

acidophobic a. [L. acere, to be sour; Gr. phobos, fear] Pertaining to the intolerance of an acid environment; oxypho-bic.

acidotheca n. [L. acere, to be sour; Gr. theke, case] (ARTHRO: Insecta) The pupal sheath of the ovipositor.

aciduric a. [L. acere, to be sour; durus, hardy] Tolerating an acid medium. see acidophilic.

acies n. [L. acies, sharp edge or point] (ARTHRO: Insecta) The extreme termination of a margin.

aciform a. [L. acus, needle; forma, shape] Pertaining to being shaped like a needle; acicular.

acinaciform, acinacicate a. [L. acinaces, short sword; forma, shape] Scimitar-shaped; having one edge thick and slightly concave, the other thin and convex; curved and growing wider toward a curve with a truncate apex.

acinarious a. [L. acinarius, pert. to grapes] Having globose vesicles resembling grape seeds.

aciniform a. [L. acinus, berry or grape; forma, shape] Resembling a cluster of berries; having small kernels like grapes.

acinus n.; pl. -ini [L. acinus, berry or grape] A small sac or alveolus in a multicellular gland or lung. acinose a.

aclid organ (acantho) A spined invagination located at the anterior end of an acanthor; sometimes referred to as a rostellum.

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