| slovo | definícia |
Trochoid
(gcide) | Trochoid \Tro"choid\, n. [Gr. ? a wheel + -oid; cf. F.
trocho["i]de. See Troche.] (Geom.)
The curve described by any point in a wheel rolling on a
line; a cycloid; a roulette; in general, the curve described
by any point fixedly connected with a moving curve while the
moving curve rolls without slipping on a second fixed curve,
the curves all being in one plane. Cycloids, epicycloids,
hypocycloids, cardioids, etc., are all trochoids.
[1913 Webster] |
Trochoid
(gcide) | Trochoid \Tro"choid\, a.
1. (Anat.) Admitting of rotation on an axis; -- sometimes
applied to a pivot joint like that between the atlas and
axis in the vertebral column.
[1913 Webster]
2. (Zool.) Top-shaped; having a flat base and conical spire;
-- said of certain shells.
[1913 Webster]
3. (Zool.) Of or pertaining to the genus Trochus or family
Trochidae.
[1913 Webster] |
| | podobné slovo | definícia |
epitrochoidal engine
(encz) | epitrochoidal engine, n: |
Epitrochoid
(gcide) | Epitrochoid \Ep`i*tro"choid\, n. [Pref. epi- + Gr. ? wheel +
-oid.] (Geom.)
A kind of curve. See Epicycloid, any Trochoid.
[1913 Webster] |
Hypotrochoid
(gcide) | Hypotrochoid \Hy`po*tro"choid\, n. [Pref. hypo- + trochoid.]
(Geom.)
A curve, traced by a point in the radius, or radius produced,
of a circle which rolls upon the concave side of a fixed
circle. See Hypocycloid, Epicycloid, and Trochoid.
[1913 Webster] |
Trochoidal
(gcide) | Trochoidal \Tro*choid"al\, a.
1. (Geom.) Of or pertaining to a trochoid; having the
properties of a trochoid.
[1913 Webster]
2. (Anat. & Zool.) See Trochoid, a.
[1913 Webster] |
articulatio trochoidea
(wn) | articulatio trochoidea
n 1: a freely moving joint in which movement is limited to
rotation; "the articulation of the radius and ulna in the
arm is a pivot joint" [syn: pivot joint, rotary joint,
rotatory joint, articulatio trochoidea] |
epitrochoidal engine
(wn) | epitrochoidal engine
n 1: a rotary engine that is a four-stroke internal-combustion
engine without reciprocating parts [syn: Wankel engine,
Wankel rotary engine, epitrochoidal engine] |
|