12-letter words containing i, s, o, a, b
- pax vobiscum — peace be with you
- petrobrusian — a member of a 12th-century sect in S France that rejected the Mass, infant baptism, prayers for the dead, sacerdotalism, the veneration of the cross, and the building of churches.
- plastic bomb — a bomb made of plastic explosive.
- plumbaginous — containing graphite.
- polysaprobic — flourishing in a body of water having a heavy load of decomposed organic matter and almost no free oxygen
- polysyllabic — consisting of several, especially four or more, syllables, as a word.
- postabortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
- postbiblical — occurring after the events written about in the Bible, occurring after the Bible was written
- postbrachial — belonging to the arm, foreleg, wing, pectoral fin, or other forelimb of a vertebrate.
- problematics — problems or difficulties in a particular situation or subject
- proboscidate — having a proboscis.
- proboscidean — pertaining to or resembling a proboscis.
- proscribable — to denounce or condemn (a thing) as dangerous or harmful; prohibit.
- pseudorabies — a highly contagious, usually fatal disease of cattle, sheep, and other animals, caused by the herpesvirus Herpes suis, and characterized by severe pruritus and progressive central nervous system involvement sometimes including an aggressive excitement phase.
- questionable — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.
- questionably — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.
- rainbow fish — guppy.
- rambunctious — difficult to control or handle; wildly boisterous: a rambunctious child.
- reabsorption — resorption (def 2).
- ribbon snake — either of two long-tailed garter snakes, Thamnophis proximus or T. sauritus, of eastern and central North America, having a brownish body and yellow or orange stripes.
- ribonuclease — any of the class of enzymes that catalyze the hydrolysis of RNA.
- sailboarding — windsurfing.
- sailing boat — sailboat.
- salmon brick — a soft, imperfectly fired brick having a reddish-orange color.
- samurai bond — a bond issued in Japan and denominated in yen, available for purchase by nonresidents of Japan
- sanctionable — authoritative permission or approval, as for an action.
- saprobiology — the branch of ecology that studies decaying organic matter or environments, especially saprophytes that derive nourishment in this way.
- satanophobia — a morbid fear of the devil or Satan
- savings bond — a U.S. government bond with principal amounts up to $10,000.
- scrapbooking — hobby: collaging
- scrieveboard — the drawing board of a shipbuilder
- scrive board — a floorlike construction on which the lines of a vessel can be drawn or scribed at full size.
- scrobiculate — furrowed or pitted.
- secobarbital — a white, odorless, slightly bitter powder, C 1 2 H 1 8 N 2 O 3 , used as a sedative and hypnotic.
- semiarboreal — (of animals) spending half or some of their life in trees
- semiglobular — possessing the form of half a globe; hemispheric.
- serial bonds — Serial bonds are bonds that are issued at the same time but have staggered maturity dates.
- shopbreaking — the act of breaking into a shop
- shopping bag — a strong, usually paper or plastic, bag with handles, used to carry purchases or belongings.
- sigma baryon — an unstable hyperon having positive, negative, or zero electric charge and strangeness −1. Symbol: Σ.
- signal board — a board for displaying electrically transmitted signals and indicating their source.
- sino-tibetan — a family of languages including especially Burmese, Tibetan, and the various local languages and dialects whose speakers share literary Chinese as their standard language.
- six-yard box — On a football pitch, the six-yard box is the rectangular area marked in front of the goal.
- snowboarding — a board for gliding on snow, resembling a wide ski, to which both feet are secured and that one rides in an upright position.
- socializable — to make social; make fit for life in companionship with others.
- soda biscuit — a biscuit having soda and sour milk or buttermilk as leavening agents.
- soldier crab — a small blue Australian estuarine crab of the Mictyris genus usually found in large numbers
- solitary bee — any of numerous bees, as the leaf-cutting bees, that do not live in a community.
- somnambulism — sleepwalking.
- somnambulist — sleepwalking.