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sextubercular
sextubercular adj. 
/ˌsɛkstʃᵿˈbəːkjᵿlə/, /ˌsɛksˌt(j)uˈbərkjələr/ Zoology rare = sextuberculate adj.; cf. sexitubercular adj. at sexi- comb. form .
Brit. /ˌsɛkst(j)ᵿˈbəːkjᵿlə/
, /ˌsɛkst(j)ᵿˈbəːkjᵿlə//ˌsɛkstʃᵿˈbəːkjᵿlə/U.S. /ˌsɛkstəˈbərkjələr/
, /ˌsɛkstəˈbərkjələr//ˌsɛksˌt(j)uˈbərkjələr/ΚΠ
1888 Amer. Naturalist 22 1076 The inferior primitive triangle broken, as the upper molars develop into the sextubercular and the lower into the quadritubercular type.
1937 Trans. Amer. Philos. Soc. 30 110 In Periptychus and Ectoconus these two cusps occupy the normal position of the protocone and hypocone of the normal quadritubercular or sextubercular tooth.
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