| 释义 |
apex
I. \ˈāˌpeks\ noun
(plural apexes \-ksə̇z\ ; or api·ces \ˈāpəˌsēz also ˈap-\)
Etymology: Latin, summit, small rod at top of flamen's cap; probably akin to Latin aptus fastened, attached — more at apt
1.
a. : the highest or uppermost point : summit, top, peak
< the apex of the mountain >
as
(1) : the vertex of an angle, a cone, or a pyramid
(2) : the point of the heavens toward which a celestial body is moving at a given time
< solar apex >
b. : the pointed end : tip
< the apex of the tongue >
2. : the highest or culminating point : climax, acme, culmination
< the apex of his career >
< the apex of an era >
3. : the end, edge, or crest of a vein of mineral nearest the surface
4. in palmistry : a triangle formed by capillary lines on the pads of the fingers and the mounts
5.
a. : the narrow somewhat conical upper part of a lung extending into the root
b. : the lower pointed end of the heart situated in man opposite the space between the cartilages of the fifth and sixth ribs on the left side
c. : the extremity of the root of a tooth
II. intransitive verb
(-ed/-ing/-es)
of a vein of mineral : to form an apex : present an upper edge |