Pyramidic
(Pyr`a*mid"ic Pyr`a*mid"ic*al) a. Of or pertaining to a pyramid; having the form of a pyramid; pyramidal.
" A pyramidical rock." Goldsmith. "Gold in pyramidic plenty piled." Shenstone. — Pyr`a*mid"ic*al*ly,
adv. Pyr`a*mild"ic*al*ness, n.
Pyramidion
(||Pyr`a*mid"i*on) n.; pl. Pyramidia [NL., from L. pyramis. See Pyramid.] The small
pyramid which crowns or completes an obelisk.
Pyramidoid
(Py*ram"i*doid) n. [Gr. pyramid + -id: cf. F. pyramidoïde.] A solid resembling a pyramid; —
called also pyramoid. Barlow.
Pyramis
(||Pyr"a*mis) n.; pl. Pyramides [L.] A pyramid.
Pyramoid
(Pyr"a*moid) n. See Pyramidoid.
Pyrargyrite
(Py*rar"gy*rite) n. [Gr. fire + silver.] (Min.) Ruby silver; dark red silver ore. It is a sulphide
of antimony and silver, occurring in rhombohedral crystals or massive, and is of a dark red or black color
with a metallic adamantine luster.
Pyre
(Pyre) n. [L. pure, Gr. fr. fire. See Fire.] A funeral pile; a combustible heap on which the dead
are burned; hence, any pile to be burnt.
For nine long nights, through all the dusky air,
The pyres thick flaming shot a dismal glare.
Pope. Pyrena
(||Py*re"na) n.; pl. Pyrenæ [NL., fr. Gr. the stone of fruit.] (Bot.) A nutlet resembling a seed, or
the kernel of a drupe. Gray.
Pyrene
(Py"rene) n. (Chem.) One of the less volatile hydrocarbons of coal tar, obtained as a white
crystalline substance, C16H10.
Pyrene
(Py"rene), n. (Bot.) Same as Pyrena.
Pyrenean
(Pyr`e*ne"an) a. [L. Pyrenaei (sc. montes) the Pyrenees, fr. Pyrene, Gr. a daughter of
Bebryx, beloved by Hercules, and buried upon these mountains.] Of or pertaining to the Pyrenees, a
range of mountains separating France and Spain. — n. The Pyrenees. Shak.
Pyrenoid
(Py*re"noid) n. [Gr. like a kernel. See Pyrena, and -oid.] (Zoöl.) A transparent body found in
the chromatophores of certain Infusoria.
Pyrethrin
(Pyr"eth*rin) n. [NL. Pyrethrum, generic name of feverfew, Gr. feverfew.] (Chem.) A substance
resembling, and isomeric with, ordinary camphor, and extracted from the essential oil of feverfew; —
called also Pyrethrum camphor.
Pyrethrine
(Pyr"eth*rine) n. (Chem.) An alkaloid extracted from the root of the pellitory of Spain
Pyretic
(Py*ret"ic) a. [Gr. burning heat, fever, from fire: cf. F. pyrétique.] (Med.) Of or pertaining to
fever; febrile.
Pyretology
(Pyr`e*tol"o*gy) n. [Gr. fever + -logy: cf. F. pyrétologie.] (Med.) A discourse or treatise on
fevers; the doctrine of fevers. Hooper.
Pyrexia
(||Py*rex"i*a) n.; pl. Pyrexiæ [NL., fr. Gr. to be feverish, akin to fever.] (Med.) The febrile condition.
Pyrexial
(Py*rex"i*al Py*rex"ic*al) a. (Med.) Of or pertaining to fever; feverish.
Pyrgom
(Pyr"gom) n. [Gr. a place furnished with towers, fr. a tower.] (Min.) A variety of pyroxene; —
called also fassaite.
