TB


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Tb,

symbol for the element terbiumterbium
[from Ytterby, a village in Sweden], metallic chemical element; symbol Tb; at. no. 65; at. wt. 158.92535; m.p. 1,356°C;; b.p. 3,123°C;; sp. gr. about 8.25; valence +3 or +4. Terbium is a soft, malleable, ductile, silver-gray metal.
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TB:

see tuberculosistuberculosis
(TB), contagious, wasting disease caused by any of several mycobacteria. The most common form of the disease is tuberculosis of the lungs (pulmonary consumption, or phthisis), but the intestines, bones and joints, the skin, and the genitourinary, lymphatic, and
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Tb

(chemistry)

through bolt

A bolt which passes completely through the members it connects.

TB

(1) See Thunderbolt.

(2) (TB) (TeraByte) One trillion bytes (technically 1,099,511,627,776 bytes). See tera and space/time.

(3) (Tb) (TeraBit) One trillion bits (technically 1,099,511,627,776 bits). Lower case "b" for bit and "B" for byte are not always followed and often misprinted. Thus, Tb may refer to terabyte. See tera and space/time.