12-letter words containing r, c
- auctioneered — Simple past tense and past participle of auctioneer.
- auger effect — the spontaneous emission of an electron instead of a photon by an excited ion as a result of a vacancy being filled in an inner electron shell
- autarkically — In an autarkic way.
- autochangers — Plural form of autochanger.
- autocratical — Autocratic.
- autocritique — the examination of factors guiding one's thoughts, beliefs and actions; self-criticism
- autodestruct — likely to or possessing the power to destroy or obliterate itself or its possessor
- 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
- averruncator — a long pair of shears used for pruning the higher branches of trees
- 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 chromosome — a type of densely staining chromosome of uncertain biological function, found in many plant and animal species.
- 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
- baby-bouncer — a seat on springs suspended from a door frame, etc, in which a baby may be placed for exercise
- baccalaurean — of a baccalaureate
- baccalauréat — (esp in France) a school-leaving examination that qualifies the successful candidates for entrance to university
- bach trumpet — a modern small three-valved trumpet for playing clarino passages in Bach's music
- 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 country — The back country is an area that is a long way from any city and has very few people living in it.
- back scatter — the deflection of nuclear particles or of radiation in a scattering process through an angle greater than 90°.
- back stretch — the straight part of a race track opposite the part leading to the finish line.
- back-slapper — the practice of making a loud and effusive display of friendliness, cordiality, etc., as by slapping persons on the back.
- backbenchers — Plural form of backbencher.
- backbreakers — Plural form of backbreaker.
- backbreaking — demanding great effort; exhausting
- backcourtman — any of the players stationed in the backcourt; a guard
- backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
- backgrounded — Simple past tense and past participle of background.
- backgrounder — A backgrounder is a short article in a newspaper or magazine that provides background information about a particular subject.
- backpressure — a resistant pressure exerted by liquid or gas against the forward motion or flow of an exhaust or pipe system: Careful control of backpressure ensures an even supply of oil from the well.
- backroom boy — You can refer to a man as a backroom boy when he does important work in an organization and has good ideas but is not seen or known about by the public.
- 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.
- backswordman — a person who uses a backsword.
- backtrackers — Plural form of backtracker.
- backtracking — to return over the same course or route.
- backwardness — toward the back or rear.
- bacon-slicer — a machine for cutting bacon into slices