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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,…

Belonging to the antennæ. Owen.

A small antenna; -- applied to the smaller pair of antennæ or feelers of Crustacea.

s of Gnaphalium, but the name is now given to many plants of different genera, as Filago, Antennaria, etc.; cottonweed.

ls (as insects), which are used in testing objects by touch and in searching for food; an antenna; a palp. Insects . . . perpetually feeling and searching before them with their feelers or antennæ. Derham.

An oceanic fish of the genus Antennarius or Pterophrynoides; -- called also mousefish and toadfish.

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

Situated below the eyes, as the antenna of certain insects.

Containing knobs; full of knobs; ending in a nob. See Illust of Antenna. The horns of a roe deer of Greenland are pointed at the top, and knobbed or tuberous at the bottom. Grew.

m good signaling distance varies directly as the square of the height of the transmitting antenna.

gular intervals, so as to resemble a string of beads; as, a moniliform root; a moniliform antenna. See Illust. of Antenna.

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

ints of the antennæ are prominent, thus producing a serrate appearance. See Illust. under Antenna.

The scale, or exopodite, of an antenna of a crustacean.

an induction coil in an oscillator, these waves being launched into space through a lofty antenna. The receiving apparatus consisted of another antenna in circuit with a coherer and small battery for operating through a relay the ordinary telegraphic receiver. This apparatus contains the essential features of all the s…