← Back to search

Meaning of stillwellite | Babel Free

Noun CEFR C1

Definitions

A trigonal-pyramidal rare earth borosilicate mineral.

uncountable

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

stilper stilpnomelane stilpnosiderite Stilson Stilt stilt bug