13-letter words containing a, c, t, i
- autonomically — autonomous.
- autorickshaws — Plural form of autorickshaw.
- autoschediasm — anything done with little forethought or preparation
- autoschediaze — to do or act with little forethought or preparation
- autotoxicosis — autointoxication.
- averruncation — the act of averting or turning away
- avocationally — in one's leisure time
- axiomatically — pertaining to or of the nature of an axiom; self-evident; obvious.
- azurmalachite — a blue-green ornamental stone consisting of a mixture of azurite and malachite.
- back mutation — the reversion of a mutant to the original phenotype
- back straight — a straight part of a circuit, esp of an athletics track or a racecourse, furthest from the finishing point
- back-stabbing — Back-stabbing consists of unkind and disloyal actions or remarks that are likely to harm someone such as a friend or colleague.
- back-up light — a light on the rear of a motor vehicle to warn others that the vehicle is being reversed
- backbone site — A key Usenet, electronic mail and/or Internet site; one that processes a large amount of third-party traffic, especially if it is the home site of any of the regional coordinators for the Usenet maps. Notable backbone sites as of early 1993 include uunet and the mail machines at Rutgers University, UC Berkeley, DEC's Western Research Laboratories, Ohio State University and the University of Texas. Compare rib site, leaf site.
- backformation — Alternative spelling of back-formation.
- backing light — Also called backing striplight, backing strip. Theater. a striplight providing diffused illumination for the background of a stage set.
- backing store — a computer storage device, usually a disk, that provides additional storage space for information so that it can be accessed and referred to when required and may be copied into the processor if needed
- backing track — a recorded instrumental or vocal accompaniment for a pop singer or pop number
- backstitching — Present participle of backstitch.
- backwardation — the difference between the spot price for a commodity, including rent and interest, and the forward price
- bacteriocidal — Alternative spelling of bactericidal.
- bacteriogenic — Caused by bacteria.
- bacteriologic — a branch of microbiology dealing with the identification, study, and cultivation of bacteria and with their applications in medicine, agriculture, industry, and biotechnology.
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- bacteriolysis — the destruction or disintegration of bacteria
- bacteriolytic — disintegration or dissolution of bacteria.
- bacteriophage — a virus that is parasitic in a bacterium and multiplies within its host, which is destroyed when the new viruses are released
- bacteriophagy — the action of a bacteriophage
- bacterioscopy — the examination of bacteria with a microscope.
- bacteriostats — Plural form of bacteriostat.
- bacteriotoxin — any toxin that kills bacteria
- bacterization — subjection to bacterial action
- badminton cup — a long refreshing drink of claret with soda water and sugar
- bag of tricks — a container or receptacle of leather, plastic, cloth, paper, etc., capable of being closed at the mouth; pouch.
- bag-snatching — theft that involves snatching women's handbags
- balanced diet — a diet consisting of the proper quantities and proportions of foods needed to maintain health or growth.
- balancing act — If you perform a balancing act, you try to deal successfully with two or more people, groups, or situations that are in opposition to each other.
- ballistically — of or relating to ballistics.
- baltic shield — the wide area of ancient rock in Scandinavia
- baltic states — the republics of Estonia, Latvia, and Lithuania, which became constituent republics of the former Soviet Union in 1940, regaining their independence in 1991
- bandicoot rat — any of three burrowing rats of the genera Bandicota and Nesokia, of S and SE Asia: family Muridae
- banister back — a back of a chair or the like, usually having semicircular spindles between the top rail and the cross rail or seat.
- bank discount — interest on a loan deducted from the principal amount when the loan is made and based on the loan's face value
- banzai attack — a mass attack of troops, without concern for casualties, as practised by the Japanese in World War II
- barber's itch — any of various fungal infections of the bearded portion of the neck and face
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- baroclinicity — a common state of fluid stratification in which surfaces of constant pressure and others of constant density are not parallel but intersect.
- barytocalcite — a mineral, double carbonate of calcium and barium, CaCO 3 ⋅BaCO 3 , usually found in veins of lead minerals.
- baseline cost — the projected cost for an undertaking at the time it is budgeted
- basic fortran — (language) A subset of Fortran.