|indicating stratum or strata: stratiform; stratigraphy|
|stratus (strāt'əs, strā'təs) Pronunciation Key
Plural strati (strāt'ī, strā'tī)
A diffuse, grayish cloud that often produces drizzle and is formed primarily in altitudes no higher than 2,000 m (6,560 ft). A stratus cloud close to the ground or water is called fog. See illustration at cloud.