(ˈ)mwe|lōⁿ noun
or moellon de·gras ˌ ̷ ̷ ̷ ̷dāˈgrä
( plural moellons -ōⁿ(z) ; or moellons degras )
Etymology: moellon from French, probably from moelle marrow, from Old French moele, alteration of meole, from Latin medulla marrow, pith; moellon degras from moellon + degras — more at medulla
: degras 1a