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купула n stresses
Gruzovik	cupule (a small cup-shaped structure or organ, such as the cup at the base of an acorn or one of the suckers on the feet of certain flies)
med.	cupola (полукружного канала); cupula (полукружного канала)

купула: 15 phrases in 3 subjects

Aviation medicine	2
Makarov	4
Medical	9