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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Incrassated :: Incrassated (a.) Swelled out on some particular part, as the antennae of certain insects..

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

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

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

Scyllarian :: Scyllarian (n.) One of a family (Scyllaridae) of macruran Crustacea, remarkable for the depressed form of the body, and the broad, flat antennae. Also used adjectively..

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..

Flagellum :: Flagellum (v. t.) A lashlike appendage of a crustacean, esp. the terminal ortion of the antennae and the epipodite of the maxilipeds. See Maxilliped..

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

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

Antenna :: 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..

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..

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

Scaphocerite :: Scaphocerite (n.) A flattened plate or scale attached to the second joint of the antennae of many Crustacea.

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

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.

Ischiocerite :: Ischiocerite (n.) The third joint or the antennae of the Crustacea.

Taxicorn :: Taxicorn (n.) One of a family of beetles (Taxicornes) whose antennae are largest at the tip. Also used adjectively.

Long-horned :: Long-horned (a.) Having a long horn or horns; as, a long-horned goat, or cow; having long antennae, as certain beetles (Longicornia)..

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..

Heterocera :: Heterocera (n. pl.) A division of Lepidoptera, including the moths, and hawk moths, which have the antennae variable in form..