tb

1. tubercle bacillus.
2. tuberculosis.

Symbol, Chemistry.

1. terbium.

1. tubercle bacillus.
2. tuberculosis.

Symbol, Computers.

1. terabyte.

1. trial balance.
2. tubercle bacillus.
3. tuberculosis.

abbreviation for

1. trial balance
2. Also: TB tuberculosis

the chemical symbol for

1. terbium

abbreviation for

1. torpedo boat
2. Also: tb tuberculosis

1. The symbol for the elementterbium

abbr.

1. tuberculosis

1. The symbol for terbium.

1. Abbreviation of terabyte
2. Abbreviation of tuberculosis

Tb

1. A soft, silvery-gray metallic element of the lanthanide series. It is used in color television tubes, x-ray machines, and lasers. Atomic number 65; atomic weight 158.925; melting point 1,356°C; boiling point 3,123°C; specific gravity 8.229; valence 3, 4. See Periodic Table.