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13-letter words containing o, b, t, a

  • benton harbor — a city in SW Michigan, on Lake Michigan.
  • benzalacetone — benzylidene acetone.
  • bergamot mint — an aromatic herb, Mentha piperita citrata, having a lemonlike odor when crushed.
  • beta carotene — a yellowish form of carotene: a dietary deficiency of this is associated with a greater risk of certain cancers
  • beta function — a function of two variables, usually expressed as an improper integral and equal to the quotient of the product of the values of the gamma function at each variable divided by the value of the gamma function at the sum of the variables.
  • beta globulin — a blood plasma protein that is separable from other globulins by electrophoresis.
  • beta receptor — a receptor, found on the surface of some cells of the sympathetic nervous system, that is stimulated by certain adrenergic substances: such stimulation results in certain physiological responses, such as acceleration of the action of the heart and dilatation of the arteries supplying heart and skeletal muscles
  • beta-blocking — acting to inhibit the activity of the nerves that are stimulated by adrenaline
  • beta-carotene — the most abundant of various isomers of carotene, C 40 H 56 , that can be converted by the body to vitamin A.
  • beta-naphthol — either of two isomeric hydroxyl derivatives, C 1 0 H 7 OH, of naphthalene (alpha-naphthol or 1-naphthol and beta-naphthol or 2-naphthol) white or yellowish crystals, with a phenolic odor, that darken on exposure to light: used chiefly in dyes, drugs, perfumes, and insecticides.
  • beta-receptor — a site on a cell, as of the heart, that, upon interaction with epinephrine or norepinephrine, controls heartbeat and heart contractability, vasodilation, smooth muscle inhibition, and other physiological processes.
  • betamethasone — a synthetic analogue of a glucocorticoid, C 22 H 29 FO 5 , used in various forms in the treatment of inflammation, allergies, and tumors, and for replacement therapy in adrenal insufficiency.
  • bibliolatrous — characterized by bibliolatry
  • bibliophagist — a person who devours books
  • bibliothecary — a librarian
  • bibliotherapy — the use of reading as therapy
  • biconditional — (of a proposition) asserting that the existence or occurrence of one thing or event depends on, and is dependent on, the existence or occurrence of another, as “A if and only if B.”.
  • bicontinental — of, on, or involving two continents: a bicontinental survey.
  • bidirectional — (of a printhead) capable of printing from left to right and from right to left
  • big brown bat — any of several small to medium-sized common bats of the genera Myotis and Eptesicus, found worldwide in caves, trees, and buildings, including M. lucifugus (little brown bat) and E. fuscus (big brown bat) a widespread North American species.
  • bio-autograph — an analytical technique in which organic compounds are separated by chromatography and identified by studying their effects on microorganisms.
  • bioaccumulate — (of substances, esp toxins) to build up within the tissues of organisms
  • bioautography — an analytical technique in which organic compounds are separated by chromatography and identified by studying their effects on microorganisms.
  • biocompatible — not rejected by the body
  • bioelectrical — relating to electrical current generated by biological activity
  • bioequivalent — the condition in which different formulations of the same drug or chemical are equally absorbed when taken into the body.
  • biostatistics — the use of statistics to analyse biological data
  • biosystematic — relating to biosystematics
  • biotic factor — a living thing, as an animal or plant, that influences or affects an ecosystem: How do humans affect other biotic factors? Weather is not a biotic factor because it is not alive.
  • bisectionally — from a bisectional point of view
  • bitonal image — (graphics)   An image consisting only of a foreground colour and a background colour. Compare monochrome.
  • bits and bobs — Bits and bobs are small objects or parts of something.
  • bitter almond — a variety of almond whose bitter seeds yield hydrocyanic acid upon hydrolysis
  • bitter orange — a globose, reddish-yellow, bitter or sweet, edible citrus fruit.
  • bl lac object — an extremely compact violently variable form of active galaxy
  • black country — a district in the English Midlands, around Birmingham: so called from the soot and grime produced by the many local industries.
  • black section — (in Britain in the 1980s) an unofficial group within the Labour Party in any constituency that represented the interests of local Black people
  • blamestorming — a discussion or meeting for the purpose of assigning blame.
  • blanketflower — a hardy flowering plant, Gaillardia aristata, that grows in the US
  • blarney stone — a stone in Blarney Castle, in the SW Republic of Ireland, said to endow whoever kisses it with the gift of the gab and skill in flattery
  • blastogenesis — the theory that inherited characteristics are transmitted only by germ plasm
  • blastomycosis — a fungal infection particularly affecting the lungs
  • blepharoplast — a cylindrical cytoplasmic body in protozoa
  • block capital — a sans-serif letter with lines of uniform weight.
  • blood-stained — stained with blood: a bloodstained knife.
  • blot analysis — a technique for analysing biological molecules, such as proteins (Western blot analysis), DNA (Southern blot analysis), and RNA (Northern blot analysis), involving their separation by gel electrophoresis, transfer to a nitrocellulose sheet, and subsequent analysis by autoradiography
  • blow a gasket — to burst out in anger
  • blow the gaff — to divulge a secret
  • blue asbestos — a common name for the mineral crocidolite, a variety of asbestos found in Africa and Australia
  • board meeting — a meeting of the board of a company or other organization
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