acrotomousadj.

Brit.

/əˈkrɒtəməs/, U.S.

/əˈkrɑdəməs/,

/æˈkrɑdəməs/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin acrotomus , -ous suffix.

Etymology: < post-classical Latin acrotomus hewn (5th cent.; < Hellenistic Greek ἀκρότομος having the top cut off < ancient Greek ἀκρο- acro- comb. form + -τομος : see -tomy comb. form) + -ous suffix. Compare earlier axotomous adj., paratomous adj.¹, peritomous adj.

Mineralogy. rare.

Of a mineral: having a basal cleavage, i.e. one parallel with the basal plane.

ΚΠ

1837 J. D. Dana Syst. Mineral. 103 The only language fitted for a system of nomenclature..is the Latin language... The several varieties of cleavage may be expressed as follows: Peritomus..Cleavage parallel to the lateral faces. Acrotomus..Cleavage parallel to the basal plane. [Etc.]]

1844 F. Alger Phillips's Elem. Treat. Mineral. (ed. 5) 525 (heading) Jamesonite. Axotomous Antimony Glance, M[ohs]. Jamesonite, Haidinger. Lycites acrotomous, D[ana].

1933 H. P. Tiemann Iron & Steel (ed. 3) 144 A body having a cleavage parallel with the base or top is acrotomous.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).

单词	acrotomous
释义	acrotomousadj. Brit. /əˈkrɒtəməs/, U.S. /əˈkrɑdəməs/, /æˈkrɑdəməs/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin acrotomus , -ous suffix. Etymology: < post-classical Latin acrotomus hewn (5th cent.; < Hellenistic Greek ἀκρότομος having the top cut off < ancient Greek ἀκρο- acro- comb. form + -τομος : see -tomy comb. form) + -ous suffix. Compare earlier axotomous adj., paratomous adj.¹, peritomous adj. Mineralogy. rare. Of a mineral: having a basal cleavage, i.e. one parallel with the basal plane. ΚΠ 1837 J. D. Dana Syst. Mineral. 103 The only language fitted for a system of nomenclature..is the Latin language... The several varieties of cleavage may be expressed as follows: Peritomus..Cleavage parallel to the lateral faces. Acrotomus..Cleavage parallel to the basal plane. [Etc.]] 1844 F. Alger Phillips's Elem. Treat. Mineral. (ed. 5) 525 (heading) Jamesonite. Axotomous Antimony Glance, M[ohs]. Jamesonite, Haidinger. Lycites acrotomous, D[ana]. 1933 H. P. Tiemann Iron & Steel (ed. 3) 144 A body having a cleavage parallel with the base or top is acrotomous. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). < adj.1844
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