I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
Etymology: under (III) + surface
: the surface that lies underneath : underside
II. adjective
Etymology: under (II) + surface, n.
: existing or moving below the surface
undersurface craft
I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
Etymology: under (III) + surface
: the surface that lies underneath : underside
II. adjective
Etymology: under (II) + surface, n.
: existing or moving below the surface
undersurface craft
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012