either of the two saclike respiratory organs in the thorax of humans and the higher vertebrates.
an analogous organ in certain invertebrates, as arachnids or terrestrial gastropods.
at the top of one’s lungs, as loudly as possible; with full voice:
The baby cried at the top of his lungs.
either one of a pair of spongy saclike respiratory organs within the thorax of higher vertebrates, which oxygenate the blood and remove its carbon dioxide
any similar or analogous organ in other vertebrates or in invertebrates
at the top of one’s lungs, in one’s loudest voice; yelling
“human respiratory organ,” c.1300, from Old English lungen (plural), from Proto-Germanic *lungw- (cf. Old Norse lunge, Old Frisian lungen, Middle Dutch longhe, Dutch long, Old High German lungun, German lunge “lung”), literally “the light organ,” from PIE *legwh- “not heavy, having little weight; easy, agile, nimble” (cf. Russian lëgkij, Polish lekki “light;” Russian lëgkoje “lung,” Greek elaphros “light” in weight; see also lever).
The notion probably is from the fact that, when thrown into a pot of water, lungs of a slaughtered animal float, while the heart, liver, etc., do not. Cf. also Portuguese leve “lung,” from Latin levis “light;” Irish scaman “lungs,” from scaman “light;” Welsh ysgyfaint “lungs,” from ysgafn “light.” See also lights, pulmonary. Lung cancer attested from 1882.
Either of the two saclike organs of respiration that occupy the pulmonary cavity of the thorax and in which aeration of the blood takes place. It is common for the right lung, which is divided into three lobes, to be slightly larger than the left, which has two lobes.
Either of two spongy organs in the chest of air-breathing vertebrate animals that serve as the organs of gas exchange. Blood flowing through the lungs picks up oxygen from inhaled air and releases carbon dioxide, which is exhaled. Air enters and leaves the lungs through the bronchial tubes.
A similar organ found in some invertebrates.
Also, at the top of one’s voice. With an extremely loud voice. For example, The babies in the nursery all were crying at the top of their lungs. The noun top here refers to the greatest degree of volume (that is, loudest) rather than high pitch, a usage dating from the mid-1500s.
see: at the top of one’s lungs
- At the wheel
a circular frame or disk arranged to revolve on an axis, as on or in vehicles or machinery. any machine, apparatus, instrument, etc., shaped like this or having a circular frame, disk, or revolving drum as an essential feature: a potter’s wheel; roulette wheel; spinning wheel. . Nautical. a circular frame with an axle connecting […]
- At the worst
or in the highest, greatest, or most extreme degree: the worst person. most faulty, unsatisfactory, or objectionable: the worst paper submitted. most unfavorable or injurious. in the poorest condition: the worst house on the block. most unpleasant, unattractive, or disagreeable: the worst personality I’ve ever known. most lacking in skill; least skilled: the worst typist […]
- At their fingertips
the or end of a . a covering used to protect the end joint of a . extending to the fingertips, as a coat, veil, etc.: a fingertip jacket. at one’s fingertips, close at hand; easily or immediately available. at one’s command or disposal, as recall of factual information: He has the answer at his […]
- At this point
Also, at this point in time or at this juncture or at this moment . Now, as in At this point in time we don’t need a new refrigerator . Even wordier synonyms for “now” than at present , all four phrases imply that what is the case now may not always have been so […]