tb

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
  2. noun 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)
  3. noun a unit of information equal to 1000 gigabits or 10^12 (1,000,000,000,000) bits

In classic literature

Synonyms

terbium, atomic number 65

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