| 释义 |
jam
I. verb
also jamb \ˈjam, -aa(ə)-\
(jammed also jambed ; jammed also jambed ; jamming also jambing ; jams also jambs)
Etymology: perhaps of imitative origin
transitive verb
1.
a. : to press into a close or tight position : wedge in
< jams the piano between the sides of the doorway >
: fix tightly
< jam his hat on his head >
< jam his teeth together to stop their chattering >
: squeeze
< jam 50 people into a bus designed for 30 >
b.
(1) : to cause (as some movable part of a machine) to become wedged or fixed so as to be unworkable
< a misstroke will jam the typewriter keys >
(2) : to make (as a machine) unworkable by such jamming
< crashed when a loose nut jammed the controls >
c. : to impede or block passage of or along : obstruct
< could not get through because traffic was completely jammed by the crowd >
< the communications channels were jammed up with priority messages — Ira Wolfert >
d. : to fill or cause to fill closely or to excess : pack
< fans jam the stadium >
< newspaper columns were jammed with election propaganda >
< jams authentic details into his stories >
2. : to push or apply forcibly : force violently
< jammed himself through the porthole >
< jammed his spurs into the horse's flanks >
< jam the bill through a reluctant legislature by party discipline >
< jamming political opinions down students' throats — Kenneth Roberts >
specifically : to apply (the brakes) suddenly with full force — usually used with on
< would jam the brakes on and throw the passengers forward >
3. : crush, bruise
< got his right hand severly jammed in the door >
4. : to bring (a boat) close to the wind so that the upper sails are shaking or laid aback
< jam the boat into the wind to avoid collision >
5.
a. : to cause interference in (radio or radar signals) : make unintelligible (as a radio program or broadcast) by intentionally sending out signals or messages in an interfering manner
b. : to make (as a radio or radar apparatus) ineffective by jamming radio or radar signals or by causing reflection of radar waves from a special device
intransitive verb
1.
a. : to become blocked, wedged, or fixed : stick fast
< an odd cartridge may jam in the gun >
< the line jammed and the boat hung useless >
b. : to become unworkable through the jamming of a movable part
< the overheated machine jammed >
2. : to force one's way especially into a restricted space : mass together tightly : crowd
< continued to jam into the already crowded hall >
< the children jammed forward to claim their treats >
3. : to improvise on a musical instrument with a group : take part in a jam session
< gathered after hours with their instruments and jammed all night >
Synonyms: see press
II. noun
(-s)
1. : something made closely packed, immovable, or unusable by jamming : an instance of jamming
< lost the pistol match due to a jam during the rapid fire >
specifically : a crowded mass of people or things causing impedance or blockage
< a log jam in the river >
< a flood caused by an ice jam >
< delayed an hour by a traffic jam >
2.
a. : the quality or state of being jammed : stoppage, congestion
< the jam of the legislature caused by the piling up of new bills in the final days >
b. : the pressure or congestion of a crowd of people or things : crush
< escape from the clangor and jam of the city streets >
3. : an involved and embarrassing state of affairs : difficulty, mess, fix : a tight spot
< made him late for his date and got him in a jam with his girl friend >
< can get out of its jam by finding new foreign markets for its products >
4. : jam session
Synonyms: see predicament
III. adverb
: completely, clear
< filled the jar jam full >
< threw the ball jam across the field >
IV. noun
(-s)
Etymology: probably from jam (I)
1. : a product made by boiling fruit and sugar to a thick consistency without preserving the shape of the fruit
< spread raspberry jam on a slice of bread >
2. chiefly Britain : something agreeable or easy
< this job isn't all jam; it has its headaches >
< the test was jam for him and he finished first >
3. [so called from its scent that resembles that of raspberry jam] : a shrubby acacia (Acacia acuminata) with elongated slender phyllodes and cylindrical axillary spikes of yellow flowers that is an important browse plant in much of Western Australia
V. transitive verb
(jammed ; jammed ; jamming ; jams)
1. : to spread with jam
< munching jammed bread >
2. : to make into jam
< fresh, preserved, or jammed fruit >
VI. \ˈjäm\ noun
(-s)
Etymology: Hindi jām
: the ruler is some northwest Indian states in the region of Cutch, Kathiawar, and the lower Indus
VII. noun
1. : a round in roller derby in which a jammer from each team attempts to circle the course and pass members of the opposing team in order to score points
2. slang : song 3 |