Alto-cumulus - definition of Alto-cumulus by The Free Dictionary
References in periodicals archive
But this will be Alto-cumulus
clouds considering the altitude of the upper air trough.
There was scattered to broken strato- and alto-cumulus
that built from about 1500 feet AGL (3500 MSL) all the way up to 10,000 feet.
Clare, a former pupil of St Thomas More School, used the scientific names of clouds for families who live in the village, such as Alto-cumulus