Defn: To fasten with, or as with, a pin; to join; as, to pin a garment; to pin boards together. "Aa if she would pin her to her heart." Shak. To pin one's faith upon, to depend upon; to trust to.

PINACATE BUG
Pin`a*ca"te bug. [Orig. uncert.]

Defn: Any of several clumsy, wingless beetles of the genus Eleodes, found in the Pacific States.

PINA CLOTH; PINYA CLOTH
Pi"ña cloth`.

Defn: A fine material for ladies' shawls, scarfs, handkerchiefs, etc., made from the fiber of the pineapple leaf, and perhaps from other fibrous tropical leaves. It is delicate, soft, and transparent, with a slight tinge of pale yellow.

PINACOID
Pin"a*coid, n. Etym: [Gr. -oid.] (Crystallog.)

Defn: A plane parallel to two of the crystalline axes.

PINACOLIN
Pi*nac"o*lin, n. Etym: [Pinacone + L. oleum oil.] (Chem.)

Defn: A colorless oily liquid related to the ketones, and obtained by the decomposition of pinacone; hence, by extension, any one of the series of which pinacolin proper is the type. [Written also pinacoline.]

PINACONE
Pin"a*cone, n. Etym: [From Gr. (Chem.)