| 单词 | beam |
| 释义 | beam (once / 180 pages) 1n 2nv 3v 4n A beam is a long board that's used to hold up a roof or doorway. The beams in your kitchen ceiling help support the upstairs floor just above it. In construction, beams are made of wood or metal and are used to frame a building and provide structure. In gymnastics, a beam is used for balancing and doing tricks on. If someone comments that you're getting "broad in the beam," they're disparaging the width of your body, especially your hips. In Old English, a beam first meant a tree, and later a rafter or a ship's timber. WORD FAMILYbeam: beamed, beaming, beamish, beams, beamy+/beaming: beamingly/beamish: beamishly/beamy: beamily USAGE EXAMPLES“It’s beamed wirelessly across the neighborhood, but it’s not password protected,” she said. Washington Post(Dec 31, 2016) The beams of light also brought the promise of better luck this ski season. Washington Times(Jan 01, 2017) Asked to pose for a picture, Fadumo throws her arm around her mom’s shoulders and beams. Seattle Times(Dec 31, 2016) 1 1n long thick piece of wood or metal or concrete, etc., used in construction Hypo|Hyper box beam, box girder a beam built up from boards; has a hollow rectangular cross section cantileverprojecting horizontal beam fixed at one end only girdera beam made usually of steel; a main support in a structure headera framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer their weight to parallel joists, studs, or rafters header, lintelhorizontal beam used as a finishing piece over a door or window joistbeam used to support a floor or ceiling keelone of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability keelsona longitudinal beam connected to the keel of ship to strengthen it balk, baulk, rafterone of several parallel sloping beams that support a roof rider platea horizontal beam (or plate) connected to the top of a ship's vertical keel or to the keelson ridge, ridgepole, rooftreea beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters shore, shoringa beam or timber that is propped against a structure to provide support tie, tie beama horizontal beam used to prevent two other structural members from spreading apart or separating timbera beam made of wood crossbeam, crosspiece, trave, traversea horizontal beam that extends across something bilge keeleither of two lengthwise fins attached along the outside of a ship's bilge; reduces rolling coulissea timber member grooved to take a sliding panel floor joistjoist that supports a floor I-beamgirder having a cross section resembling the letter `I' sternpost(nautical) the principal upright timber at the stern of a vessel stringera long horizontal timber to connect uprights trimmer, trimmer joistjoist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc. two-by-foura timber measuring (slightly under) 2 inches by 4 inches in cross section piece a separate part of a whole structural membersupport that is a constituent part of any structure or building 2n a gymnastic apparatus used by women gymnasts 2Syn|Hyper balance beam exerciser, gymnastic apparatus sports equipment used in gymnastic exercises 1n a column of light (as from a beacon) Syn|Hypo|Hyper beam of light, irradiation, light beam, ray, ray of light, shaft, shaft of light heat ray a ray that produces a thermal effect high beamthe beam of a car's headlights that provides distant illumination moon ray, moon-ray, moonbeama ray of moonlight sunbeam, sunraya ray of sunlight laser beama beam of light generated by a laser low beamthe beam of a car's headlights that provides illumination for a short distance infrared raya ray of infrared radiation; produces a thermal effect (as from an infrared lamp) light, visible light, visible radiation (physics) electromagnetic radiation that can produce a visual sensation 2n a group of nearly parallel lines of electromagnetic radiation Syn|Hypo|Hyper electron beam, ray cathode ray a beam of electrons emitted by the cathode of an electrical discharge tube particle beama collimated flow of particles (atoms or electrons or molecules) ion beam, ionic beama beam of ions moving in the same direction at the same speed electromagnetic radiation, electromagnetic wave, nonparticulate radiation radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge 3n a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather Syn|Hyper radio beam sign, signal, signaling any nonverbal action or gesture that encodes a message 4v emit light; be bright, as of the sun or a light The fire beamed on their faces Syn|Hypo shine beat down shine hard beaconshine like a beacon glareshine intensely flame, flareshine with a sudden light outshineshine brighter than shimmershine with a weak or fitful light flick, flickershine unsteadily blazeshine brightly and intensively scintillate, twinkle, winkleemit or reflect light in a flickering manner burn, glowshine intensely, as if with heat beatglare or strike with great intensity gutterburn unsteadily, feebly, or low; flicker 5v broadcast over the airwaves, as in radio or television 3Syn|Hypo|Hyper air, broadcast, send, transmit satellite broadcast or disseminate via satellite sportscastbroadcast a sports event telecast, televisebroadcast via television interrogatetransmit (a signal) for setting off an appropriate response, as in telecommunication rebroadcast, rerunbroadcast again, as of a film colorcast, colourcastbroadcast in color air, bare, publicise, publicize make public 1v have a complexion with a strong bright color, such as red or pink Syn|Hyper glow, radiate, shine appear, look, seem give a certain impression or have a certain outward aspect 2v experience a feeling of well-being or happiness, as from good health or an intense emotion She was beaming with joy Syn|Hyper glow, radiate, shine experience, feel undergo an emotional sensation or be in a particular state of mind 3v smile radiantly; express joy through one's facial expression Hyper smile change one's facial expression by spreading the lips, often to signal pleasure 4v express with a beaming face or smile 4he beamed his approval Hyper evince, express, show give expression to 1n the broad side of a ship they sighted land on the port beam Hyper side an extended outer surface of an object 2n (nautical) breadth amidships Hyper breadth, width the extent of something from side to side |
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