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13-letter words containing o, t, r

  • best of breed — The best of breed is the animal that wins first prize in its section at a dog show.
  • bestsellerdom — the state or accomplishment of being a bestseller
  • beta carotene — a yellowish form of carotene: a dietary deficiency of this is associated with a greater risk of certain cancers
  • 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-carotene — the most abundant of various isomers of carotene, C 40 H 56 , that can be converted by the body to vitamin A.
  • 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.
  • bibliolatrous — characterized by bibliolatry
  • bibliothecary — a librarian
  • bibliotherapy — the use of reading as therapy
  • 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.
  • bill of entry — a list of goods received at a customs house for export or import
  • bio-autograph — an analytical technique in which organic compounds are separated by chromatography and identified by studying their effects on microorganisms.
  • bio-terrorism — the use of living organisms and their toxic products to kill or incapacitate, esp as a political weapon
  • bioautography — an analytical technique in which organic compounds are separated by chromatography and identified by studying their effects on microorganisms.
  • bioelectrical — relating to electrical current generated by biological activity
  • bioenergetics — the study of energy transformations in living organisms and systems
  • 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.
  • bird dismount — Hecht1 (def 1).
  • birth control — Birth control means planning whether to have children, and using contraception to prevent having them when they are not wanted.
  • birthing pool — a large bath in which a woman can give birth
  • birthing room — a section of a hospital or an outpatient facility set aside and equipped for childbirth and usually simulating a home environment in which family members or friends may be present during the delivery.
  • bite your lip — If you bite your lip, you try very hard not to show the anger or distress that you are feeling.
  • 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.
  • black country — a district in the English Midlands, around Birmingham: so called from the soot and grime produced by the many local industries.
  • 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
  • blepharoplast — a cylindrical cytoplasmic body in protozoa
  • block letters — Block letters are the same as block capitals.
  • blood blister — a blister filled with blood
  • blood brother — A man's blood brother is a man he has sworn to treat as a brother, often in a ceremony which involves mixing a small amount of their blood.
  • blood product — a pharmaceutical product made from blood, such as Factor VIII
  • board meeting — a meeting of the board of a company or other organization
  • body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
  • body-centered — (of a crystal structure) having lattice points at the centers of the unit cells.
  • bohr magneton — a unit that is used to indicate the magnetic moment of the electron structure in an atom, equal to 9.27 × 10 −21 erg/gauss.
  • bolt up right — a movable bar or rod that when slid into a socket fastens a door, gate, etc.
  • bomber jacket — A bomber jacket is a short jacket which is gathered into a band at the waist or hips.
  • bonfire night — Bonfire Night is the popular name for Guy Fawkes Night.
  • booby-trapped — (of a building, vehicle, etc) planted with a booby trap
  • boom operator — a person who operates a boom
  • booster cable — either of a pair of electric cables having clamps at each end and used for starting the engine of a vehicle whose battery is dead.
  • bootlace worm — a nemertean worm, Lineus longissimus, that inhabits shingly shores and attains lengths of over 6 m (20 ft)
  • border patrol — a government agency in charge of preventing terrorists, weapons, and illegal immigrants entering the country
  • border states — slave states bordering on the free states before the Civil War: Mo., Ky., Va., Md., & Del.
  • borlotti bean — variety of kidney bean
  • boron nitride — a white inert crystalline solid existing both in a graphite-like form and in an extremely hard diamond-like form (borazon). It is used as a refractory, high-temperature lubricant and insulator, and heat shield. Formula: BN
  • borrowed time — an uncertain, usually limited period of time extending beyond or postponing the occurrence of something inevitable.
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