Noun
lenticularis (plural lenticularis)
(meteorology) a cloud species which consists of rounded lens shaped of cloud, often forming near mountains. Associated with cirrocumulus, and altocumulus, and sometimes stratocumulus genera.
Another variety, duplicatus (closely spaced layers of the same type, one above the other), is sometimes found with cirrus of both the fibratus and uncinus species, and with altocumulus and stratocumulus of the species stratiformis and lenticularis. Source: Internet
Clouds of the lenticularis species tend to have lens-like shapes tapered at the ends. Source: Internet
The variety undulatus (having a wavy undulating base) can occur with any clouds of the species stratiformis or lenticularis, and with altostratus. Source: Internet