12-letter words containing a, r, i, s, t
- bactericides — Plural form of bactericide.
- bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them
- báinín skirt — a skirt made of this material
- bairnsfather — Bruce. 1888–1959, British cartoonist, born in India: best known for his cartoons of the war in the trenches during World War I
- ballet skirt — a full skirt, often made with several layers of fabric, typical of those worn by ballet dancers
- bankruptcies — Plural form of bankruptcy.
- baptisteries — Plural form of baptistery.
- bar sinister — the condition, implication, or stigma of being of illegitimate birth
- baraesthesia — the ability to sense pressure
- barbiturates — any of a group of barbituric acid derivatives, used in medicine as sedatives and hypnotics.
- barnstorming — A barnstorming performance is full of energy and very exciting to watch.
- barquisimeto — a city in NW Venezuela. Pop: 1 009 000 (2005 est)
- barristerial — pertaining to a barrister
- bartlesville — a city in NE Oklahoma.
- bashkirtseff — Marie, original name Marya Konstantinovna Bashkirtseva. 1858–84, Russian painter and diarist who wrote in French, noted esp for her Journal (1887)
- basket chair — a chair made of wickerwork; a wicker chair
- basmati rice — a variety of long-grain rice with slender aromatic grains, used for savoury dishes
- basque shirt — a knitted pullover shirt having a crew neck, long or short sleeves, and a pattern of horizontal stripes.
- bastard file — a file of the commercial grade of coarseness between coarse and second-cut.
- bastard wing — a tuft of feathers attached to the first digit of a bird, distinct from the wing feathers attached to the other digits and the ulna
- bastardizing — Present participle of bastardize.
- beamsplitter — Alternative spelling of beam splitter.
- bear witness — to give written or oral testimony
- beauty strip — a narrow forest corridor left uncut alongside a road or body of water.
- beggar-ticks — any of various plants, such as the bur marigold and tick trefoil, having fruits or seeds that cling to clothing, fur, etc
- below stairs — People sometimes use below stairs to refer to the servants in a rich household and the things that are connected with them.
- beta orionis — Rigel
- beta version — beta testing
- beth midrash — a place where Jews gather to study the Talmud and other religious writings; a small synagogue.
- bilateralism — the practice of being bilateral
- bioastronomy — the branch of biology which deals with the study or the discovery of life forms on other planets or in space
- biscuit ware — unglazed earthenware
- bitter aloes — a bitter purgative drug made from the leaves of several species of aloe
- bitter lakes — two lakes, the Great Bitter Lake and Little Bitter Lake in NE Egypt: part of the Suez Canal
- blatherskite — a talkative silly person
- blazing star — a North American liliaceous plant, Chamaelirium luteum, with a long spike of small white flowers
- blister pack — a type of packet in which small items are displayed and sold, consisting of a transparent dome of plastic or similar material mounted on a firm backing such as cardboard
- blues guitar — blues guitar music
- borosilicate — a salt of boric and silicic acids
- brain teaser — A brain teaser is a question, problem, or puzzle that is difficult to answer or solve, but is not serious or important.
- brain-teaser — a puzzle or problem whose solution requires great ingenuity.
- brains trust — a group of knowledgeable people who discuss topics in public or on radio or television
- brainstormer — a person who brainstorms
- brake assist — a part of a vehicle's braking system that automatically boosts braking pressure in an emergency situation
- breast drill — a geared drill that can be braced against the chest for additional leverage.
- bridal suite — a room or set of rooms in a hotel for newly married couples
- bright spark — If you say that some bright spark had a particular idea or did something, you mean that their idea or action was clever, or that it seemed clever but was silly in some way.
- british rail — the organization that ran the British railway system from 1948 until privatization in the mid-1990s
- british warm — an army officer's short thick overcoat
- brittle star — any echinoderm of the class Ophiuroidea, having the body composed of a central, rounded disk from which radiate long, slender, fragile arms.