[strey-toh-kyoo-myuh-luh
s, strat-oh-] 
| 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). |
| stra·to·cu·mu·lus (strā'tō-kyōōm'yə-ləs, strāt'ō-) n. pl. stra·to·cu·mu·li (-lī') A low-lying cloud formation occurring in extensive horizontal layers with rounded summits. [strat(us) + cumulus.] |