The black sulfide of antimony, Sb₂S₃, used in pyrotechnics, etc.

Conveyed without the use of words; unspoken or unsaid. / Unable or unwilling to speak; dumb, silent or inarticulate.

(obsolete) dentist

A musical instrument consisting of a flexible metal or bamboo “tongue” attached to a frame. This tongue is placed in the performer’s mouth and plucked with the finger to produce a note of constant ...