truncato-
(trʌŋˈkeɪtəʊ)
combining form of L. truncātus truncate, used with other adjs. of form in sense ‘truncately’.
| 1852 Dana Crust. ii. 698 Abdomen..broad truncato-rotund at apex. 1891 Cent. Dict., Truncatosinuate, in entom., truncate, with a sinus or slight inward curve on the edge of the truncation. |