a combining form of L. acūt-us sharp, in mod. L., as acūtifolius; hence in Eng. words formed on them, or on the same analogy, with sense of sharp, sharply; as acutiangle a. obs., acute-angled; acutifoliate a., sharp-leaved; acutilobate a., sharp-lobed.
1571. Digges, Geometrical Practise, II. iv. Mj. b. Of Acutiangle Triangles, called Oxigonia, there are three kindes.
