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WordNet-Online
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Noun tb has 3 senses
- terbium, Tb, atomic number 65 - a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
--1 is a kind of metallic element, metal
--1 is a substance of apatite; monazite; gadolinite, ytterbite
- tuberculosis, TB, T.B. - infection transmitted by inhalation or ingestion of tubercle bacilli and manifested in fever and small lesions (usually in the lungs but in various other parts of the body in acute stages)
--2 is a kind of infectious disease
--2 has particulars:
- terabyte, T, TB - a unit of information equal to a trillion (1,099,511,627,776) bytes or 1024 gigabytes
--3 is a kind of computer memory unit
--3 has parts: gigabyte, G, GB
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