12-letter words containing a, c, e, l, r
- anti-nuclear — opposed to military and industrial applications of nuclear energy and to technologies which produce radioactive waste products
- antiallergic — An antiallergic substance prevents or relieves allergies.
- anticlerical — opposed to the power and influence of the clergy, esp in politics
- antielectron — an elementary particle with a positive charge, a positron
- antiparticle — any of a group of elementary particles that have the same mass and spin as their corresponding particle but have opposite values for all other nonzero quantum numbers. When a particle collides with its antiparticle, mutual annihilation occurs
- aortic valve — a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle.
- appeal court — An appeal court is the same as a Court of Appeal.
- appendicular — relating to an appendage or appendicle
- apple sucker — a small homopterous insect, Psyllia mali, originally of Europe, that is a serious pest of apple crops.
- appleknocker — Northern U.S. a rustic.
- approachable — If you describe someone as approachable, you think that they are friendly and easy to talk to.
- archaeologic — Pertaining to archaeology.
- archeologist — archaeology.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archetypally — the original pattern or model from which all things of the same kind are copied or on which they are based; a model or first form; prototype.
- archetypical — Archetypical means the same as archetypal.
- archiannelid — (zoology) Any member of the Archiannelida.
- archipelagic — a large group or chain of islands: the Malay Archipelago.
- archipelagos — Plural form of archipelago.
- archive file — a single computer file that contains one or more files that have been compressed
- arena chapel — a private chapel in Padua containing a fresco cycle painted (1305–06) by Giotto.
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- arithmetical — Arithmetical calculations, processes, or skills involve the addition, subtraction, multiplication, or division of numbers.
- articulately — uttered clearly in distinct syllables.
- articulative — relating to articulation
- artiodactyle — (zoology) One of the Artiodactyla, a group of ungulates.
- ash-coloured — silver-grey in colour
- asymmetrical — Something that is asymmetrical has two sides or halves that are different in shape, size, or style.
- atheoretical — having no connection with and not founded on theory
- attractively — In an attractive manner; with the power of attracting or drawing to.
- b-s particle — a neutral meson with a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10 -12 seconds.
- baccalaurean — of a baccalaureate
- baccalauréat — (esp in France) a school-leaving examination that qualifies the successful candidates for entrance to university
- bachelor pad — a flat in which a bachelor lives
- bachelorette — A bachelorette is a woman who has never married.
- bachelorhood — the state of being a bachelor.
- bachelorship — the state of being a bachelor; bachelorhood
- back-slapper — the practice of making a loud and effusive display of friendliness, cordiality, etc., as by slapping persons on the back.
- bacon-slicer — a machine for cutting bacon into slices
- bactericidal — any substance capable of killing bacteria.
- bacteriology — Bacteriology is the science and the study of bacteria.
- bald cypress — a tree, Taxodium distichum, of swampy areas of the southern U.S., having featherlike needles and cone-shaped projections growing up from the roots, yielding a hardwood used in construction, shipbuilding, etc.
- ball-carrier — the offensive player having the ball and attempting to gain ground.
- baluchithere — a hornless rhinoceros of the extinct genus Baluchitherium that inhabited central Asia during the Oligocene and early Miocene epochs: the largest land mammal known.
- banner cloud — a plume-shaped cloud extending downwind from an isolated mountain peak. Also called cloud banner. Compare cap cloud (def 1).
- barcalounger — a type of reclinable armchair with an extendable footrest
- bare-knuckle — without boxing gloves
- barge couple — either of a pair of outside rafters along the gable end of a roof
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.
- barrack life — the experiences, activities, etc that are characteristic of a soldier's time spent dwelling in a barracks