Goniometer
(Go`ni*om"e*ter) n. [Gr. angle + -meter: cf. F. goniomètre.] An instrument for measuring
angles, especially the angles of crystals, or the inclination of planes.
Contact, or Hand,
goniometer,
a goniometer having two movable arms between which (at ab) the
faces of the crystals are placed. These arms turn about a fixed point, which is the center of the graduated
circle or semicircle upon which the angle is read off. — Reflecting goniometer, an instrument for
measuring the angles of crystals by determining through what angular space the crystal must be turned
so that two rays reflected from two surfaces successively shall have the same direction; — called also
Wollaston's goniometer, from the inventor.
Goniometric
(Go`ni*o*met"ric Go`ni*o*met"ric*al) a. Pertaining to, or determined by means of, a goniometer; trigonometric.
Goniometry
(Go`ni*om"e*try) n. [Cf. F. goniométrie.] (Math.) The art of measuring angles; trigonometry.
Gonoblastid
(Gon`o*blas"tid) n. [See Gonoblastidium.] (Zoöl.) A reproductive bud of a hydroid; a simple
gonophore.
Gonoblastidium
(||Gon`o*blas*tid"i*um) n.; pl. Gonoblastidia [NL., fr. Gr. offspring + to bud.] (Zoöl.)
A blastostyle.
Gonocalyx
(Gon`o*ca"lyx) n. [Gr. offspring + E. calyx,] (Zoöl.) The bell of a sessile gonozooid.
Gonochorism
(Gon`o*cho"rism) n. [Gr. offspring + to separate.] (a) Separation of the sexes in different
individuals; — opposed to hermaphroditism. (b) In ontogony, differentiation of male and female individuals
from embryos having the same rudimentary sexual organs. (c) In phylogeny, the evolution of distinct
sexes in species previously hermaphrodite or sexless.
Gonococcus
(||Gon`o*coc"cus) n. [NL., fr. Gr. semen, the genitals + NL. & E. coccus.] (Med.) A
vegetable microörganism of the genus Micrococcus, occurring in the secretion in gonorrhea. It is believed
by some to constitute the cause of this disease.
Gonoph
(Gon"oph) n. [Perh. fr. Heb. gannabh thief.] A pickpocket or thief. [Eng. Slang] Dickens.
Gonophore
(Gon"o*phore) n. [Gr. offspring, seed + to bear.]
1. (Zoöl.) A sexual zooid produced as a medusoid bud upon a hydroid, sometimes becoming a free
hydromedusa, sometimes remaining attached. See Hydroidea, and Illusts. of Athecata, Campanularian,
and Gonosome.
2. (Bot.) A lengthened receptacle, bearing the stamens and carpels in a conspicuous manner.
Gonorrhea
(Gon`or*rhe"a, Gon`or*rhœ"a) n. [L. gonorrhoea, Gr. that which begets, semen, the genitals
+ to flow: cf. F. gonorrhée.] (Med.) A contagious inflammatory disease of the genitourinary tract, affecting
especially the urethra and vagina, and characterized by a mucopurulent discharge, pain in urination, and
chordee; clap.
Gonorrheal
(Gon`or*rhe"al, Gon`or*rhœ"al) a. (Med.) Of or pertaining to gonorrhea; as, gonorrheal rheumatism.
Gonosome
(Gon"o*some) n. [Gr. offspring + -some body.] (Zoöl.) The reproductive zooids of a hydroid
colony, collectively.
Gonotheca
(||Gon`o*the"ca) n.; pl. Gonothec [NL., fr. Gr. offspring + box.] (Zoöl.) A capsule developed
on certain hydroids inclosing the blastostyle upon which the medusoid buds or gonophores are developed; —
called also gonangium, and teleophore. See Hydroidea, and Illust. of Campanularian.