/stray'toh kyooh"myeuh leuhs, strat'oh-/ , n. , pl. stratocumulus .
a cloud of a class characterized by large dark, rounded masses, usually in groups, lines, or waves, the individual elements being larger than those in altocumulus and the whole being at a lower altitude, usually below 8000 feet (2400 m).
[ 1890-95; STRATO- + -CUMULUS ]