English definition of Antenna

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Definition of antenna

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Antenna (n.) A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids..

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Antennule :: Antennule (n.) A small antenna; -- applied to the smaller pair of antennae or feelers of Crustacea.

Frogfish :: Frogfish (n.) An oceanic fish of the genus Antennarius or Pterophrynoides; -- called also mousefish and toadfish.

Redhorn :: Redhorn (n.) Any species of a tribe of butterflies (Fugacia) including the common yellow species and the cabbage butterflies. The antennae are usually red.

Infraocular :: Infraocular (a.) Situated below the eyes, as the antenna of certain insects..

Brachyceral :: Brachyceral (a.) Having short antennae, as certain insects..

Squamellae :: Squame (n.) The scale, or exopodite, of an antenna of a crustacean..

Clavicornes :: Clavicornes (n. pl.) A group of beetles having club-shaped antennae.

Lamellicorn :: Lamellicorn (a.) Having antennae terminating in a group of flat lamellae; -- said of certain coleopterous insects.

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..

Feeler :: Feeler (n.) One of the sense organs or certain animals (as insects), which are used in testing objects by touch and in searching for food; an antenna; a palp..

Subuliform :: Subulicornes (n. pl.) A division of insects having slender or subulate antennae. The dragon flies and May flies are examples.

Myriapoda :: Myriapoda (n. pl.) A class, or subclass, of arthropods, related to the hexapod insects, from which they differ in having the body made up of numerous similar segments, nearly all of which bear true jointed legs. They have one pair of antennae, three pairs of mouth organs, and numerous trachaae, similar to those of true insects. The larvae, when first hatched, often have but three pairs of legs. See Centiped, Galleyworm, Milliped..

Procerite :: Procerite (n.) The segment next to the flagellum of the antennae of Crustacea.

Epistome :: Epistome (n.) The region between the antennae and the mouth, in Crustacea..

Tunicated :: Tunicated (a.) Having each joint buried in the preceding funnel-shaped one, as in certain antennae of insects..

Insecta :: Insecta (n. pl.) One of the classes of Arthropoda, including those that have one pair of antennae, three pairs of mouth organs, and breathe air by means of tracheae, opening by spiracles along the sides of the body. In this sense it includes the Hexapoda, or six-legged insects and the Myriapoda, with numerous legs. See Insect, n..

Clavicorn :: Clavicorn (a.) Having club-shaped antennae. See Antenna.

Immortelle :: Immortelle (n.) A plant with a conspicuous, dry, unwithering involucre, as the species of Antennaria, Helichrysum, Gomphrena, etc. See Everlasting..

Pectinated :: Pectinated (a.) Having very narrow, close divisions, in arrangement and regularity resembling those of a comb; comblike; as, a pectinate leaf; pectinated muscles. See Illust. (e) of Antennae..

Scape :: Scape (n.) The long basal joint of the antennae of an insect.