Tri*plic"i*ty (?), n. [Cf. F. triplicité, fr. L. triplex, triplicis,
threefold. See Triplicate, a.] The quality or state of being triple, or
threefold; trebleness.
In their trinal triplicities on high.
Spenser.
Trip`li*cos"tate (?), a. [Triple + costate.] (Bot.) Three-ribbed.
Trip"lite (?), n. [Cf. F. triplite. See Triple.] (Min.) A mineral of a
dark brown color, generally with a fibrous, massive structure. It is a
fluophosphate of iron and manganese.
Trip`lo*blas"tic (?), a. [Gr. &?; threefold + -blast + -ic.] (Biol.)
Of, pertaining to, or designating, that condition of the ovum in which
there are three primary germinal layers, or in which the blastoderm
splits into three layers.
Trip*loi"dite (?), n. (Min.) A manganese phosphate near triplite, but
containing hydroxyl instead of fluorine.
Trip"ly (?), adv. In a triple manner.
Trip"mad`am (?), n. [F. tripe-madame, trique-madame.] (Bot.) Same as
Prickmadam.
Tri"pod (?), n. [L. tripus, - odis, Gr. &?;; &?; (see Tri-) + &?;, &?;,
foot. See Foot, and cf. Tripos, Trivet.] 1. Any utensil or vessel, as a
stool, table, altar, caldron, etc., supported on three feet.
On such, a stool, in the temple of Apollo at Delphi, the Pythian
priestess sat while giving responses to those consulting the Delphic
oracle.
2. A three-legged frame or stand, usually jointed at top, for
supporting a theodolite, compass, telescope, camera, or other
instrument.
Tripod of life, or Vital tripod (Physiol.), the three organs, the
heart, lungs, and brain; — so called because their united action is
necessary to the maintenance of life.
Tri*po"di*an (?), n. (Mus.) An ancient stringed instrument; — so called
because, in form, it resembled the Delphic tripod.
Trip"o*dy (?), n. [Pref. tri- + - pody, as in dipody.] (Pros.) Three
metrical feet taken together, or included in one measure.
Trip"o*li (?), n. (Min.) An earthy substance originally brought from
Tripoli, used in polishing stones and metals. It consists almost wholly
of the siliceous shells of diatoms.
Trip"o*line (?), a. 1. Of or pertaining to Tripoli or its inhabitants;
Tripolitan.