adj. [Gr. dis, twice; aktis, ray]
Being pointed at both ends.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • diactinal — di·ac·ti·nal …   English syllables

  • diactinal — …   Useful english dictionary

  • diactinal monaxon — (PORIFERA) A monaxon that develops by growing in both directions, while originating from a central point; diactine; rhabdus …   Dictionary of invertebrate zoology

  • Sponge spicule — Sponge spicules Spicules are structural elements found in most sponges. They provide structural support and deter predators. Large spicules, visible to the naked eye are referred to as megascleres, while smaller, microscopic ones are termed… …   Wikipedia

  • anisochela — n. [Gr. anisos, unequal; chele, claw] 1. (ARTHROPODA) A chela with two unlike parts. 2. (PORIFERA) A diactinal microsclere with unlike, recurved hooks, plates or flukes at each end; see isochela …   Dictionary of invertebrate zoology

  • biradiate — adj. [L. bis, two; radiatus, rayed] Having two rays or spokes; see diactinal, diaxon …   Dictionary of invertebrate zoology

  • centrotylote — adj. [Gr. kentron, center; tylos, knob] (PORIFERA) In diactinal monoaxons, having the knob near the middle of the shaft of a spicule …   Dictionary of invertebrate zoology

  • cladotylote — adj. [Gr. klados, branch; tylos, knob] (PORIFERA) In diactinal monaxons, a tylote having somewhat recurved clads at each end …   Dictionary of invertebrate zoology

  • diactine — see diactinal monaxon …   Dictionary of invertebrate zoology

  • isochela — n. [Gr. isos, equal; chele, claw] 1. A chela with two like parts. 2. (PORIFERA) A diactinal microsclere with like recurved hooks, plates, flukes or anchor shaped at each end; see anisochela …   Dictionary of invertebrate zoology

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