| 释义 |
suc·tion
I. \ˈsəkshən\ noun
(-s)
Usage: often attributive
Etymology: Late Latin suction-, suctio, from Latin suctus (past participle of sugere to suck) + -ion-, -io -ion — more at suck
1.
a. : the act or process of sucking
< suck the membrane from the throat … by direct mouth-to-mouth suction — Morris Fishbein >
b. Britain : the imbibing of liquor
2.
a.
(1) : the act or process of exerting a force upon a solid, liquid, or gaseous body by reason of a reduced air pressure over part of its surface
(2) : the force so exerted
< suction on the upper surface of an airplane wing >
< surfaces that adhere through suction >
< pumped up by suction >
b. : the drawing in in an internal-combustion engine of a gaseous mixture during the suction stroke; also : the power or capacity to draw in such mixture
c. or suction drainage : the act or process of removing secretions or fluids from hollow or tubular organs or cavities by means of a tube and a device (as a suction pump) that operates on negative pressure
3. : the capacity for absorbing moisture or wet paint
4. : the amount the share point of a moldboard plow is turned down to cause the share to descend or be drawn into the soil a predetermined distance
5. : a pipe, fitting, or other device used in a machine that operates by suction
II. transitive verb
(-ed/-ing/-s)
: to remove from a body cavity or passage by suction
< a small amount of mucus could be suctioned through the trachea — Leon Unger > |