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GLOSSARY

ALTOCUMULUS (Ac): noun; a middle height, cumulus-type cloud

Note: alto + cumulus

ALTOCUMULUS CASTELLANUS (Accs): noun; a middle height, cumulus-type

cloud that shows some vertical development

Note: alto + cumulus + castellanus
ALTOSTRATUS (As) ; noun; a middle height, stratus-type cloud

Note: alto + stratus

ANVIL: noun; the large flat top that develops on some cumulonimbus clouds

Ex. Pilots should avoid flying near or through the anvil of a thunderstorm cloud.

CIRROCUMULUS (Cc): noun; a high altitude, cirroform, cumulus-type cloud

Note: cirro- + cumulus
CIRROFORM: noun; high altitude clouds formed from ice particles

Ex. There are three basic cloud types; cumuliform, stratiform, and cirroform.

Note: cirro + form

CIRROSTRATUS (Cs): ㆍnoun; a high-altitude, cirroform, stratus-type cloud

CIRRUS (Ci): noun; a high-altitude, often transparent, cloud layer or group of separated
clouds

CUMULIFORM: noun; a cloud type characterized by flat bases and lifted rounded tops
Ex. There are three basic cloud types; cumuliform, stratiform, and cirroform.

CUMULOFRACTUS : noun; cumulus clouds that have developed as (or been separated into)

small separate clouds

Note: cumulo + fractus

CUMULONIMBUS (Cb): noun; a cumulus-type cloud with possible precipita - tion
Note: cumulo + nimbus

CUMULONIMBUS MAMMA (Cbmam): noun; a large turbulent, cumulus-type storm

cloud characterized by rounded extensions of the base

Note: cumulo + nimbus + mamma

CUMULUS (Cu): noun: a cloud characterized by a flat base and lifted, rounded top