13-letter words starting with bu
- bunsen burner — a gas burner, widely used in scientific laboratories, consisting of a metal tube with an adjustable air valve at the base
- buoyancy tank — an enclosed air-filled section of a boat, ship or hovercraft designed to keep it afloat and prevent it from sinking
- buoyant force — the law that a body immersed in a fluid is buoyed up by a force (buoyant force) equal to the weight of the fluid displaced by the body.
- buprenorphine — an opiate used medicinally as a powerful analgesic
- bureaucratese — wordy, jargon-filled, overcomplicated language considered typical of bureaucrats
- bureaucratism — an official of a bureaucracy.
- bureaucratist — a believer in bureaucracy
- bureaucratize — to administer by or transform into a bureaucracy
- burgess shale — a bed of Cambrian sedimentary rock in the Rocky Mountains in British Columbia containing many unique invertebrate fossils
- burglar alarm — A burglar alarm is an electric device that makes a bell ring loudly if someone tries to enter a building by force.
- burglar-proof — designed to be secure and to frustrate any attempted burglary
- burglariously — in the manner of a burglar or buglary
- burial ground — A burial ground is a place where bodies are buried, especially an ancient place.
- buridan's ass — an example intended to show the deficiency of reason. An ass standing equidistant from two identical heaps of oats starves to death because reason provides no grounds for choosing to eat one rather than the other
- burmese glass — an American art glass of the late 19th century, ranging from greenish-yellow to pink.
- burnham scale — the salary scale for teachers in English state schools, which is revised periodically
- burning glass — a convex lens for concentrating the sun's rays into a small area to produce heat or fire
- burrowing owl — a ground owl (Athene cunicularia) of the prairie regions of North and South America having long legs and a small head: it makes its nest in abandoned burrows
- burt standish — Burt L. pseudonym of Gilbert Patten.
- bus mastering — bus master
- bush sickness — an animal disease caused by a cobalt deficiency in old bush country
- busheled iron — heterogeneous iron made from scrap iron and steel.
- business card — A person's business card or their card is a small card which they give to other people, and which has their name and details of their job and company printed on it.
- business case — a briefcase or attaché case.
- business park — an area specially designated and landscaped to accommodate business offices, warehouses, light industry, etc
- business plan — A business plan is a detailed plan for setting up or developing a business, especially one that is written in order to borrow money.
- business suit — a formal suit suitable for wearing to work
- business trip — a journey made somewhere and back again for business purposes in one's working capacity
- businesswoman — A businesswoman is a woman who works in business.
- bustard quail — button quail.
- bustard-quail — any of several birds of the family Turnicidae, of warmer parts of the Old World, resembling but not related to the true quail. Also called bustard quail, hemipode.
- buster collar — a round collar, similar to a lampshade in shape, that is fitted round the neck of an animal or bird, for example to prevent it removing or interfering with a dressing or other treatment
- busto arsizio — a city in Lombardy, N Italy.
- butanoic acid — kind of acid
- butch haircut — a short haircut for men, similar to a crew cut.
- butcher block — designating or of a thick slab made by gluing together strips of hardwood, as maple or oak, used for counter and table tops, etc.
- butcher knife — a large, very sharp knife for cutting or trimming meat.
- butcher linen — a strong, heavy fabric made of rayon or rayon and cotton with a linen finish, constructed in plain weave.
- butcher paper — heavy, moisture-resistant paper, as used for wrapping meat.
- butcher's boy — a boy doing deliveries for a butcher and perhaps also learning the butchery trade, esp in the past
- butcher's saw — a type of hacksaw used especially by butchers for cutting through meat and bones.
- butler's tray — a tray resting on or attached to an X-shaped, often folding stand, on which are kept drink bottles and glasses
- butter cookie — Cookery. a plain cookie whose chief ingredients are butter, flour, and sugar.
- butter cooler — an earthenware container, consisting of a dish and cover, used to keep butter cool
- butter muslin — a fine loosely woven cotton material originally used for wrapping butter
- butterfingers — a person who drops things inadvertently or fails to catch things
- butterfly net — a lightweight, fine net on the end of a pole used for catching butterflies
- butterfly nut — wing nut.
- butterfly pea — any of several leguminous plants of the genus Clitoria, as C. mariana, of North America, having pale-blue flowers.
- butterflyfish — any small tropical marine percoid fish of the genera Chaetodon, Chelmon, etc, that has a deep flattened brightly coloured or strikingly marked body and brushlike teeth: family Chaetodontidae