“frustulum”的英英意思

单词 frustulum 释义 ‖ frustulum Obs.Pl. frustula.[L. frustulum small piece.]a. A fragment, an atom. b. Math. A small frustum.1700S. Parker 6 Philos. Ess. 109 Nor yet could each such Frustulum have been so modify'd and temper'd as we find, unless by the...