Initialism of medium intensity steady state. / Initialism of microbially induced sedimentary structure.

A member of a Native American people from British Columbia.

(meteorology) Ice formed by the rapid freezing of cold water droplets of fog on to a cold surface. / (meteorology) A coating or sheet of ice so formed. / A film or slimy coating.

(obsolete) simple past tense and past participle of slap