Definition of tentacle

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Tentacle (n.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion..

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Plumous :: Plumous (a.) Having hairs, or other parts, arranged along an axis like a feather; feathery; plumelike; as, a plumose leaf; plumose tentacles..
Opelet :: Opelet (n.) A bright-colored European actinian (Anemonia, / Anthea, sulcata); -- so called because it does not retract its tentacles..
Tentaculated :: Tentaculated (a.) Having tentacles, or organs like tentacles; tentacled..
Pleurobrachia :: Pleurobrachia (n.) A genus of ctenophores having an ovate body and two long plumose tentacles.
Rhizostomata :: Rhizostomata (n. pl.) A suborder of Medusae which includes very large species without marginal tentacles, but having large mouth lobes closely united at the edges. See Illust. in Appendix..
Sea Orange :: Sea orange () A large American holothurian (Lophothuria Fabricii) having a bright orange convex body covered with finely granulated scales. Its expanded tentacles are bright red.
Polypoid :: Polypoid (a.) Like a polyp; having the nature of a polyp, but lacking the tentacles or other parts..
Nudibrachiate :: Nudibrachiate (a.) Having tentacles without vibratile cilia.
Calycozoa :: Calycozoa (n. pl.) A group of acalephs of which Lucernaria is the type. The body is cup-shaped with eight marginal lobes bearing clavate tentacles. An aboral sucker serves for attachment. The interior is divided into four large compartments. See Lucernarida.
Tentaculocyst :: Tentaculocyst (n.) One of the auditory organs of certain medusae; -- called also auditory tentacle.
Tentacle :: Tentacle (n.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion..
Entoprocta :: Entoprocta (n. pl.) A group of Bryozoa in which the anus is within the circle of tentacles. See Pedicellina.
Acerous :: Acerous (a.) Destitute of tentacles, as certain mollusks..
Nereis :: Nereis (n.) A genus, including numerous species, of marine chaetopod annelids, having a well-formed head, with two pairs of eyes, antennae, four pairs of tentacles, and a protrusile pharynx, armed with a pair of hooked jaws..
Spirable :: Spiodea (n. pl.) An extensive division of marine Annelida, including those that are without oral tentacles or cirri, and have the gills, when present, mostly arranged along the sides of the body. They generally live in burrows or tubes..
Hippocrepian :: Hippocrepian (n.) One of an order of fresh-water Bryozoa, in which the tentacles are on a lophophore, shaped like a horseshoe. See Phylactolaema..
Actinotrocha :: Actinotrocha (n. pl.) A peculiar larval form of Phoronis, a genus of marine worms, having a circle of ciliated tentacles..
Basommatophora :: Basommatophora (n. pl.) A group of Pulmonifera having the eyes at the base of the tentacles, including the common pond snails..
Saccate :: Saccate (a.) Of or pertaining to the Saccata, a suborder of ctenophores having two pouches into which the long tentacles can be retracted..
Rhinophore :: Rhinophore (n.) One of the two tentacle-like organs on the back of the head or neck of a nudibranch or tectibranch mollusk. They are usually retractile, and often transversely furrowed or plicate, and are regarded as olfactory organs. Called also dorsal tentacles. See Illust. under Pygobranchia, and Opisthobranchia..
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