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to the mouth organs of insects, arachnids, crustaceans, and annelids; as, the mandibular palpi, maxillary palpi, and labial palpi. The palpi of male spiders serve as sexual organs. Called also palp. See Illust. of Arthrogastra and Orthoptera.

The quality of being impalpable. Jortin.

Not palpable; that cannot be felt; extremely fine, so that no grit can be perceived by touch. "Impalpable powder." Boyle.

In an impalpable manner.

A labial palp.

One of the labial palpi of an insect. See Illust. under Labium.

One of a tribe of beetles, having long maxillary palpi.

One of the Pedipalpi.

A division of Arachnida, including the whip scorpions (Thelyphonus) and allied forms. Sometimes used in a wider sense to include also the true scorpions.

Pertaining to, or resembling, the pedipalps.

One of the second pair of mouth organs of arachnids. In some they are leglike, but in others, as the scorpion, they terminate in a claw.

One of a family of beetles having the maxillary palpi terminating in a hatchet-shaped joint.

A scamp; an Irish term for a good-for-nothing fellow; -- often used in good-humored contempt or ridicule. [Colloq.]

One of a group of carabid beetles having slender palpi.

The act of enticing by soft words; enticement. [Obs.]

Destitute of a palp.

An impalpable powder. [Obs.]

The act of reducing a substance to a fine or impalpable powder. [Obs.] Johnson.

at anxiety accompanied by painful constriction at the upper part of the belly, often with palpitation and oppression.

may be distinguished from the ordinary mosquitoes of the genus Culex by the long slender palpi, nearly equaling the beak in length, while those of the female Culex are very short. They also assume different positions when resting, Culex usually holding the body parallel to the surface on which it rests and keeping the…