12-letter words containing b, r, i, t, s
- 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
- belligerents — warlike; given to waging war.
- 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
- bio-security — the precautions taken to protect against the spread of lethal or harmful organisms and diseases
- bioastronomy — the branch of biology which deals with the study or the discovery of life forms on other planets or in space
- biochemistry — Biochemistry is the study of the chemical processes that happen in living things.
- biodiversity — Biodiversity is the existence of a wide variety of plant and animal species living in their natural environment.
- biorhythmics — the study of biorhythms
- bioterrorism — Bioterrorism is terrorism that involves the use of biological weapons.
- bird nesting — the activity of searching for birds' nests as a hobby
- bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
- bird-s--nest — nest (def 1).
- bird-spotter — a bird-watcher
- biscuit ware — unglazed earthenware
- bit of skirt — a girl or woman
- bitter aloes — a bitter purgative drug made from the leaves of several species of aloe
- bitter cress — any plant belonging to the genus Cardamine, of the mustard family, having usually pinnate leaves and clusters of white, pink, or purple flowers.
- 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
- blister rust — a disease of certain pines caused by rust fungi of the genus Cronartium, causing swellings on the bark from which orange masses of spores are released
- blisteringly — causing a blister or blisters.
- blood sister — a sister by birth
- bloodthirsty — Bloodthirsty people are eager to use violence or display a strong interest in violent things. You can also use bloodthirsty to refer to very violent situations.
- bloody shirt — something, as a political issue or historical event, that can be used to stir up outrage, partisan support, etc.
- blues guitar — blues guitar music
- boiled shirt — a dress shirt with a stiff front
- boisterously — rough and noisy; noisily jolly or rowdy; clamorous; unrestrained: the sound of boisterous laughter.
- borosilicate — a salt of boric and silicic acids
- bossier city — city in NW La., on the Red River opposite Shreveport: pop. 56,000
- botrytis rot — a disease of many plants caused by fungi of the genus Botrytis, characterized by leaf blight, a tan-gray moldlike surface growth, and the rotting of stems and storage organs.
- 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.
- brinell test — a test for determining the relative hardness (Brinell hardness) of a metal by measuring the diameter of the indentation made when a hardened steel ball is forced into the metal under a given pressure: the measure of hardness (Brinell number) is equal to the load in kilograms divided by the surface area in square millimeters of the indentation