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B.th.

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• B.v.

  blessed virgin. farewell. book value. elihu, 1853–1937, u.s. inventor, born in england. sir george paget, 1892–1975, english physicist (son of sir joseph john): n-bel prize 1937. james, 1700–48, english poet, born in scotland. james (“b.v”) 1834–82, english poet. john arthur, 1861–1933, scottish scientist and author. sir joseph john, 1856–1940, english physicist: n-bel prize 1906. virgil, […]

• British thermal unit

  the amount of heat required to raise the temperature of 1 pound (0.4 kg) of water 1°f. abbreviation: btu, btu, b.t.u., b.t.u., b.th.u. noun a unit of heat in the fps system equal to the quant-ty of heat required to raise the temperature of 1 pound of water by 1°f. 1 british thermal unit is […]

• B.w.

  (of a motion picture, photograph, drawing, etc.) black and white, as distinguished from color. a black and white motion picture, photograph, drawing, etc. warfare that makes use of bacteria, viruses, toxins, etc., to disable or destroy people, domestic animals, and food crops. abbreviation: b.w. noun the use of living organisms or their toxic products to […]

• B.y.

  b.y. billion years

• B1 security

  b1 security orange book

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