1571 Digges Pantom. i.Elem. B iij,An Obtusiangle Triangle hath one obtuse angle.
Ibid. ii. iii. M j,The Area of this Obtusiangle Isoscheles.
obtusi-
combining form
Etymology: New Latin, from Latin obtusus, past participle
: obtusely
< obtusirostrate >
< obtusifolious >
< obtusirostrate >
< obtusifolious >
词根词缀:obtusi-
【来源及含义】Latin: to blunt, dull; from ob- "against" plus tundere, "to beat, strike"
【同源单词】blunt, bluntness, obtuse, obtuseness, obtusilingual, obtusion