browse words by letter
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
trochoid |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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. From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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. 2. (Zo["o]l.) Top-shaped; having a flat base and conical spire; -- said of certain shells. 3. (Zo["o]l.) Of or pertaining to the genus Trochus or family {Trochid[ae]}.
This work is licensed under a
