20-letter words containing a, b, y, l
- membranous labyrinth — an intricate combination of paths or passages in which it is difficult to find one's way or to reach the exit. Synonyms: maze, network, web.
- methylbenzyl acetate — methylphenylcarbinyl acetate.
- miliary tuberculosis — tuberculosis in which the bacilli are spread by the blood from one point of infection, producing small tubercles in other parts of the body.
- nickel tetracarbonyl — nickel carbonyl.
- physical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- play catch-up (ball) — to try to equal or surpass one's opponent in competition, as a ballgame, in which one is behind
- probability function — the function the values of which are probabilities of the distinct outcomes of a discrete random variable
- prothonotary warbler — a wood warbler, Protonotaria citrea, of the eastern U.S., having an orange-yellow head and underparts, and bluish-gray wings and tail.
- relative probability — a measure or estimate of the degree of confidence one may have in the occurrence of an event, defined as the limit of the proportion observed in a sample as the sample size tends to infinity
- royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
- scream bloody murder — Law. the killing of another human being under conditions specifically covered in law. In the U.S., special statutory definitions include murder committed with malice aforethought, characterized by deliberation or premeditation or occurring during the commission of another serious crime, as robbery or arson (first-degree murder) and murder by intent but without deliberation or premeditation (second-degree murder)
- self-belaying system — (in climbing) equipment used to pay out rope as required and thus enable a climber to self-belay
- sir william berkeley — Busby [buhz-bee] /ˈbʌz bi/ (Show IPA), (William Berkeley Enos) 1895–1976, U.S. choreographer and musical-film director.
- subscription library — a commercial lending library
- tetrahydrocannabinol — a compound, C 21 H 30 O 2 , that is the physiologically active component in cannabis preparations (marijuana, hashish, etc.) derived from the Indian hemp plant or produced synthetically. Abbreviation: THC.
- that will be the day — I look forward to that
- the canterbury tales — an uncompleted sequence of tales by Chaucer, written for the most part after 1387.
- to keep your balance — If you keep your balance, for example, when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
- tribromoacetaldehyde — bromal.
- walton and weybridge — a city in Surrey, SE England: a London suburb.
- westminster assembly — a convocation that met at Westminster, London, 1643–49, and formulated the articles of faith (Westminster Confession of Faith) that are accepted as authoritative by most Presbyterian churches.
- yellow-billed magpie — either of two corvine birds, Pica pica (black-billed magpie) of Eurasia and North America, or P. nuttalli (yellow-billed magpie) of California, having long, graduated tails, black-and-white plumage, and noisy, mischievous habits.
- yellow-breasted chat — an American warbler, Icteria virens, having a yellow throat and breast and greenish-brown upper parts and noted for imitating the songs of other species.