| 释义 |
dome
I. \ˈdōm\ noun
(-s)
Etymology: French, Italian, & Latin; French dôme dome, cathedral, from Italian duomo cathedral, from Medieval Latin domus church, from Latin, house — more at timber
1.
a. archaic : a stately building : mansion
b. : resort, retreat — used especially with pleasure
< the pleasure domes of Reno or Las Vegas — Jack Goodman >
2. : a vaulted circular roof or ceiling
3. obsolete : a cathedral church
4. : a natural formation, a structure, or a projecting part arched and rounded that has some resemblance to a cupola or vaulted ceiling of a building:
a. : the upper part of a reverberatory furnace
b. : the roof of a vaulted cavern
c. : a rounded mountaintop or vast mound of ice
d. : an overhanging hemispherical space or area
< the sun seeming to hang in a coppery dome >
< projected on the dome of the planetarium >
e. : the vertical chamber on the top of a steam boiler or of a tank car
f. : the hemispherical or cylindrical roof of an astronomical observatory providing for rotation of the observing slit to any part of the sky
g.
(1) : a glass-enclosed compartment built into the roof of a railroad car to permit upper-deck passengers an unobstructed view in every direction
< adopted the dome car as standard equipment >
(2) : astrodome
h. : the arching periphery of the carcass of a pneumatic tire
i. : a concave approximately quarter-spherical usually plaster structure backing and overhanging a theatrical stage
5. : the back inside cap or case of a jointed-case watch
6.
a. : a form of crystal composed of planes parallel to a lateral axis which meet above in a horizontal edge like a roof — see brachydome, clinodome, macrodome, orthodome
b. : a form of crystal composed of only two faces intersecting along and astride of a symmetry plane regardless of the orientation of the line of their intersection
7.
a. : a doubly plunging anticline that is broad in comparison with its length and consequently approximately circular or elliptical in plan : a quaquaversal fold
< the Ozark dome is many miles in diameter >
< some small and steep-sided salt domes in Louisiana >
< at the top of a dome oil and gas may have collected >
b. : a rock mass in domical form
< the granite domes of the Yosemite >
c. : a rounded snow peak
d. : a broad gently sloping volcano — called also shield volcano, volcanic dome
8. : a rounded isolated elevation on the ocean bottom at depths greater than 100 fathoms
9. chiefly slang : a person's head
10. : a ball-shaped or mushroom-shaped clothing accessory:
a. : a raised button
b. : snap fastener
11. : a rounded-arch element in the wave tracing in an electroencephalogram
II. verb
(-ed/-ing/-s)
transitive verb
1. : to cover with or as if with a dome
2. : to press, bend, or thrust up into a dome
< upward pressure from underlying magma domes the surface — Journal of Geology >
< shaping the cover with a doming mallet >
intransitive verb
1. : to swell upward or outward like a dome
2. : to arch overhead in a dome (as of the sky)
III. noun
: a roofed sports stadium |