12-letter words containing a, c, r, i
- atheoretical — having no connection with and not founded on theory
- athrocytosis — the capability of a cell to receive and store matter
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atomic power — nuclear power.
- attractingly — in a manner that attracts
- attractively — In an attractive manner; with the power of attracting or drawing to.
- attractivity — The quality or degree of attractive power or influence.
- au contraire — on the contrary
- auction room — a room in a building where auctions take place
- auctioneered — Simple past tense and past participle of auctioneer.
- autarkically — In an autarkic way.
- autocratical — Autocratic.
- autocritique — the examination of factors guiding one's thoughts, beliefs and actions; self-criticism
- autoinjector — A medical device designed to deliver a single dose of a particular, typically life-saving, drug.
- autoreactive — (immunology, medicine) Acting against the organism by which it was produced.
- autorhythmic — That generates its own rhythm.
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- avariciously — characterized by avarice; greedy; covetous.
- avascularity — the condition of having few blood vessels or of being without blood vessels
- aviculturist — A person who keeps and rears (breeds) birds.
- avuncularity — the condition of being an uncle
- awe-stricken — filled with awe.
- axisymmetric — being symmetrical around an axis
- azithromycin — A macrolide antibiotic derived from erythromycin.
- 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.
- baby carrier — a kind of sling or rucksack used to carry small babies either on one's chest or one's back
- bachelorship — the state of being a bachelor; bachelorhood
- backbreaking — demanding great effort; exhausting
- backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
- backstarting — a marketing technique in publishing, whereby new customers are sent back issues of magazines or journals as part of their subscription
- backswimmers — Plural form of backswimmer.
- backtracking — to return over the same course or route.
- bacon-slicer — a machine for cutting bacon into slices
- bacteria bed — a layer of sand or gravel used to expose sewage effluent, in its final stages, to air and the action of microorganisms
- bactericidal — any substance capable of killing bacteria.
- bactericides — Plural form of bactericide.
- bacteriocide — Alternative form of bactericide.
- bacteriology — Bacteriology is the science and the study of bacteria.
- bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them
- 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.
- bankruptcies — Plural form of bankruptcy.
- barbarically — without civilizing influences; uncivilized; primitive: barbaric invaders.
- barbecue pit — a trench in which wood or charcoal is burned for barbecuing
- barber chair — a chair used by barbers, adjustable in height and having an adjustable headrest, back, and footrest.
- barcoo river — a river in E central Australia, in SW Queensland: joins with the Thomson River to form Cooper Creek
- bariatrician — a physician who specializes in bariatrics.
- barn dancing — the act of performing a progressive round country dance
- barodynamics — the branch of mechanics concerned with heavy structures
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.