simple past tense and past participle of cloud over

(intransitive) To become cloudy or overcast.

Alternative form of Oort Cloud (the Solar System's Oort cloud)

(astronomy) A roughly spherical region of space composed of comet-like bodies and other minor planets and asteroids that orbit distantly in a planetary system.

St. Cloud.

Any of several cities. / A city, the county seat of Stearns County, Minnesota, United States. It was named after Saint-Cloud in France.

(physics) A mathematically defined region around an atomic nucleus defined by a high probability that the atom's electrons will be present in that region.

(meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow. An arcus type cloud often found along squall lines.

(meteorology) Grouping of the standard cloud classification system. Members include cirrus, cirrocumulus, cirrostratus, altocumulus, altostratus, nimbostratus, stratocumulus, stratus, cumulus, and cumulonimbus.

A subgrouping of standard cloud classification system, coming after the major cloud genera