8-letter words containing o, b, t, a
- bestowal — to present as a gift; give; confer (usually followed by on or upon): The trophy was bestowed upon the winner.
- betatron — a type of particle accelerator for producing high-energy beams of electrons, having an alternating magnetic field to keep the electrons in a circular orbit of fixed radius and accelerate them by magnetic induction. It produces energies of up to about 300 MeV
- betazole — a substance, C 5 H 9 N 3 , used in medicine to stimulate gastric secretion.
- bevatron — a proton synchrotron at the University of California
- biathlon — a contest in which skiers with rifles shoot at four targets along a 20-kilometre (12.5-mile) cross-country course
- bibation — the activity of drinking to excess
- biforate — having two openings, pores, or perforations
- bilobate — divided into or having two lobes
- bination — celebration of Mass twice on the same day by the same priest.
- bioplast — a very small unit of bioplasm
- biotical — pertaining to life.
- blackout — A blackout is a period of time during a war in which towns and buildings are made dark so that they cannot be seen by enemy planes.
- blacktop — Blacktop is a hard black substance which is used as a surface for roads.
- blastoff — Blastoff is the moment when a rocket leaves the ground and rises into the air to begin a journey into space.
- blastoid — a type of extinct echinoderm, which can be found in fossil form in regions of North America
- blastoma — a tumour composed of embryonic tissue that has not yet developed a specialized function
- bloating — Bloating is the swelling of a body or part of a body, usually because it has a lot of gas or liquid in it.
- bloviate — to talk at length, esp in an insubstantial but inflated manner
- blowkart — a simple wheeled vehicle such as a go-kart which has been fitted with a sail and is powered by the wind
- bluecoat — a person who wears a blue coat, such as a sailor or policeman
- boastful — If someone is boastful, they talk too proudly about something that they have done or that they own.
- boasting — to speak with exaggeration and excessive pride, especially about oneself.
- boat bed — a bed of the Empire period having raised ends terminating in outward scrolls.
- boat bug — water boatman.
- boatable — able to be carried by boat
- boatbill — a nocturnal tropical American wading bird, Cochlearius cochlearius, similar to the night herons but with a broad flattened bill: family Ardeidae, order Ciconiiformes
- boathook — a pole with a hook at one end, used aboard a vessel for fending off other vessels or obstacles or for catching a line or mooring buoy
- boatlift — an evacuation or rescue by boat
- boatlike — resembling a boat
- boatload — A boatload of people or things is a lot of people or things that are, or were, in a boat.
- boatneck — a wide, high neckline that follows the curve of the collarbone and ends in points on the shoulder seams.
- boatslip — a docking place for a boat, as between wharves.
- boatsman — boatman.
- boattail — a large species of blackbird, Quiscalus major, found in coastal areas of the southeastern US
- boatyard — A boatyard is a place where boats are built and repaired or kept.
- boba tea — bubble tea.
- bobfloat — a small buoyant float, usually consisting of a quill stuck through a piece of cork
- body art — physical adornments such as tattoos and piercings
- body fat — the amount of fat on a person's body
- boeotian — a native or inhabitant of Boeotia, a region of ancient Greece
- boethian — Anicius Manlius Severinus [uh-nish-ee-uh s man-lee-uh s sev-uh-rahy-nuh s] /əˈnɪʃ i əs ˈmæn li əs ˌsɛv əˈraɪ nəs/ (Show IPA), a.d. 475?–525? Roman philosopher and statesman.
- bogarted — to take an unfair share of (something); keep for oneself instead of sharing: Are you gonna bogart that joint all night?
- bolthead — the head of a bolt
- boltonia — any North American plant of the genus Boltonia, having daisy-like flowers with white, violet, or pinkish rays: family Compositae (composites)
- bonavist — hyacinth bean.
- bonytail — a fish, Gila elegans, found in the Colorado River, having flaring fins and a thin caudal peduncle.
- bootable — containing software used to boot a computer
- bootjack — a device that grips the heel of a boot to enable the foot to be withdrawn easily
- bootlace — A bootlace is a long thin cord which is used to fasten a boot.
- bootlast — a foot-shaped piece of wood or metal inserted into a boot or shoe to help it keep its shape