See Also: nimbostratus(dictionary)

nimbostratus (iou)



nimbostratus noun. L19.
[from NIMBUS + -O- + STRATUS.]
Meteorology. Orig. = CUMULONIMBUS. Now, a cloud or cloud-type, usu. occurring as an extensive thick layer at low altitude, from which precipitation falls (not necessarily reaching the ground) without any lightning or thunder.