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Gyrodus Gyr"o*dus, n. [NL., fr. Gr. ? round + ? tooth.]
A genus of extinct o["o]litic fishes, having rounded teeth in
several rows adapted for crushing.
GyrogoniteGyrogonite Gy*rog"o*nite, n. [Gr. ? circle, ring + ? fruit.]
The petrified fruit of the Chara hispida, a species of
stonewort. See Stonewort. --Lyell.
Gyroidal Gy*roid"al, a. [Gr. ? circle + -oid + -al.]
1. Spiral in arrangement or action.
2. (Crystallog.) Having the planes arranged spirally, so that
they incline all to the right (or left) of a vertical
line; -- said of certain hemihedral forms.
3. (Opt.) Turning the plane of polarization circularly or
spirally to the right or left.
Gyrolepis Gy*rol"e*pis, n. [NL., fr. Gr. ? round + ? scale.]
A genus of ganoid fishes, found in strata of the new red
sandetone, and the lias bone beds. --Agassiz.
Gyroma Gy*ro"ma, n. [NL., fr. Gr. ? to round, bend, fr. ?
A turning round. [R.]
Gyromancy Gyr"o*man"cy, n. [Gr. ? ring, circle + -mancy: cf.
A kind of divination performed by drawing a ring or circle,
and walking in or around it. --Brande & C.
GyronGyron Gy"ron, n. [F. giron; of German origin. See Gore a
piece of cloth,] (Her.)
A subordinary of triangular form having one of its angles at
the fess point and the opposite aide at the edge of the
escutcheon. When there is only one gyron on the shield it is
bounded by two lines drawn from the fess point, one
horizontally to the dexter side, and one to the dexter chief
Gyropigeon Gy"ro*pi"geon, n. [L. gyrare to revolve + E.
A flying object simulating a pigeon in flight, when projected
from a spring trap. It is used as a flying target in shooting
Gyroscopic Gy"ro*scop"ic, a.
Pertaining to the gyroscope; resembling the motion of the
Gyrostat Gy"ro*stat, n. [Gr. ? ring, circle + ? to cause to
A modification of the gyroscope, consisting essentially of a
fly wheel fixed inside a rigid case to which is attached a
thin flange of metal for supporting the instrument. It is
used in studying the dynamics of rotating bodies.
Gyrostatic Gy"ro*stat"ic, a. (Physics)
Of or pertaining to the gyrostat or to gyrostatics.
Gyrostatics Gy"ro*stat"ics, n. (Physics)
The doctrine or theory of the gyrostat, or of the phenomena
of rotating bodies.
Helvella or Gyromitra esculentaTurban-top Tur"ban-top`, n. (Bot.)
A kind of fungus with an irregularly wrinkled, somewhat
globular pileus (Helvella, or Gyromitra, esculenta.). S argyropsScup Scup, n. [Contr. fr. American Indian mishc[`u]p, fr.
mishe-kuppi large, thick-scaled.] (Zo["o]l.)
A marine sparoid food fish (Stenotomus chrysops, or S.
argyrops), common on the Atlantic coast of the United
States. It appears bright silvery when swimming in the
daytime, but shows broad blackish transverse bands at night
and when dead. Called also porgee, paugy, porgy,
Note: The same names are also applied to a closely allied
Southern species. (Stenotomus Gardeni). zoogyroscopeCinematograph Cin`e*mat"o*graph, n. [Gr. ?, ?, motion +
1. A machine, combining magic lantern and kinetoscope
features, for projecting on a screen a series of pictures,
moved rapidly (25 to 50 a second) and intermittently
before an objective lens, and producing by persistence of
vision the illusion of continuous motion; a moving-picture
machine; also, any of several other machines or devices
producing moving pictorial effects. Other common names for
the cinematograph are animatograph, biograph,
bioscope, electrograph, electroscope,
kinematograph, kinetoscope, veriscope, vitagraph,
vitascope, zo["o]gyroscope, zo["o]praxiscope, etc.