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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Acerous :: Acerous (a.) Without antennae, as some insects..

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)..

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

Lamellated :: Lamellated (a.) Composed of, or furnished with, thin plates or scales. See Illust. of Antennae..

Rhopalocera :: Rhopalocera (n. pl.) A division of Lepidoptera including all the butterflies. They differ from other Lepidoptera in having club-shaped antennae.

Filiform :: Filiform (a.) Having the shape of a thread or filament; as, the filiform papillae of the tongue; a filiform style or peduncle. See Illust. of AntennAe..

Longicornia :: Longicornia (n. pl.) A division of beetles, including a large number of species, in which the antennae are very long. Most of them, while in the larval state, bore into the wood or beneath the bark of trees, and some species are very destructive to fruit and shade trees. See Apple borer, under Apple, and Locust beetle, under Locust..

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..

Antennae :: Antennae (pl. ) of Antenn.

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..

Cudweed :: Cudweed (n.) A small composite plant with cottony or silky stem and leaves, primarily a species of Gnaphalium, but the name is now given to many plants of different genera, as Filago, Antennaria, etc.; cottonweed..

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

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

Clavated :: Clavated (a.) Club-shaped; having the form of a club; growing gradually thicker toward the top. [See Illust. of Antennae..

Pinion :: Pinion (n.) A moth of the genus Lithophane, as L. antennata, whose larva bores large holes in young peaches and apples..

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

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

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

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

Knobbed :: Knobbed (a.) Containing knobs; full of knobs; ending in a nob. See Illust of Antenna.