ellipsoid 音标拼音: [ɪl'ɪpsɔɪd]
n . 椭圆体
椭圆体
ellipsoid adj 1 :
having the nature or shape of an ellipsoid [
synonym :
{
ellipsoid }, {
ellipsoidal }, {
spheroidal }]
n 1 :
a surface whose plane sections are all ellipses or circles ;
"
the Earth is an ellipsoid "
Conoid \
Co "
noid \ (
k [=
o ]"
noid ),
n . [
Gr .
kwnoeidh `
s conical ;
kw ^
nos cone e '
i ^
dos form :
cf .
F .
cono ["
i ]
de .]
1 .
Anything that has a form resembling that of a cone .
[
1913 Webster ]
2 . (
Geom .)
(
a )
A solid formed by the revolution of a conic section about its axis ;
as ,
a parabolic conoid ,
elliptic conoid ,
etc .; --
more commonly called {
paraboloid },
{
ellipsoid },
etc .
(
b )
A surface which may be generated by a straight line moving in such a manner as always to meet a given straight line and a given curve ,
and continue parallel to a given plane . --
Math .
Dict .
[
1913 Webster ]
Ellipsoid \
El *
lip "
soid \,
n . [
Ellipse -
oid :
cf .
F .
ellipsoide .]
(
Geom .)
A solid ,
all plane sections of which are ellipses or circles .
See {
Conoid },
n .,
2 (
a ) .
[
1913 Webster ]
Note :
The ellipsoid has three principal plane sections ,
a ,
b ,
and c ,
each at right angles to the other two ,
and each dividing the solid into two equal and symmetrical parts .
The lines of meeting of these principal sections are the axes ,
or principal diameters of the ellipsoid .
The point where the three planes meet is the center .
[
1913 Webster ]
{
Ellipsoid of revolution },
a spheroid ;
a solid figure generated by the revolution of an ellipse about one of its axes .
It is called a prolate spheroid ,
or prolatum ,
when the ellipse is revolved about the major axis ,
and an oblate spheroid ,
or oblatum ,
when it is revolved about the minor axis .
Ellipsoid
Ellipsoid \
El *
lip "
soid \,
Ellipsoidal \
El `
lip *
soi "
dal \,
a .
Pertaining to ,
or shaped like ,
an ellipsoid ;
as ,
ellipsoid or ellipsoidal form .
Elliptic 30 Moby Thesaurus words for "
ellipsoid ":
ball ,
balloon ,
bladder ,
blob ,
boll ,
bolus ,
bubble ,
bulb ,
bulbil ,
bulblet ,
geoid ,
globe ,
globelet ,
globoid ,
globule ,
glomerulus ,
gob ,
gobbet ,
knob ,
knot ,
oblate spheroid ,
orb ,
orbit ,
orblet ,
pellet ,
prolate spheroid ,
rondure ,
sphere ,
spheroid ,
spherule
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