D defs.my
Entry 1 sense Webster, 1913

Thomsonite

· Thom·son·ite · IPA
01 n. A zeolitic mineral, occurring generally in masses of a radiated structure. It is a hydrous silicate of aluminia, lime, and soda. Called als…
  1. 1.
    A zeolitic mineral, occurring generally in masses of a radiated structure. It is a hydrous silicate of aluminia, lime, and soda. Called also mesole, and comptonite.(Min.) Also: mesole, comptonite