A chair designed for massages.

Alternative form of masterstroke

An ornament worn looped over the fingers during ceremonial dancing by various indigenous people of Alaska.

Alternative spelling of grandmaster

(physics) The unit of mass in the system of Planck units, defined as: m_P=√≈2.1765⨯10⁻⁸ mbox kg

Thelepus spectabilis, a worm that lives in the tidal zone that builds a protective tunnel or case to which fragments of shell and sand are attached. Found partly buried in shell sand and under stones in rock pools at low tide.

(colloquial) mass spectrometer

(dated) A male teacher of penmanship. / A bird, the yellow bunting or yellowhammer, Emberiza citrinella.

plural of writing master

A kind of Attic black-figure cup, produced in the sixth century BC, bearing fine small-format decoration.