† prismatidadj.n.

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρισματ- , πρῖσμα , -id suffix².

Etymology: < ancient Greek πρισματ-, πρῖσμα prism n. + -id suffix². Compare earlier prismatoid adj., prismatoidal adj. N.E.D. (1908) gives the pronunciation as (pri·zmătid) /ˈprɪzmətɪd/.

Crystallography. Obsolete. rare.

A. adj.

Designating a crystalline form consisting of three or more faces parallel to an axis. Cf. prism n. 5.

ΚΠ

1895 N. Story-Maskelyne Crystallogr. vii. §302 The designations of..the horizontal prismatid forms as domes, the vertical one as a prism, have already been given in article 109.

B. n.

A crystalline form of this kind.

ΚΠ

1895 N. Story-Maskelyne Crystallogr. vii. §328 Among the varieties of prismatids, of which the poles always lie in a zone perpendicular to the zone-circle of symmetry, two are especially noticeable.

This entry has been updated (OED Third Edition, June 2007; most recently modified version published online June 2020).

单词	prismatid
释义	† prismatidadj.n. Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρισματ- , πρῖσμα , -id suffix². Etymology: < ancient Greek πρισματ-, πρῖσμα prism n. + -id suffix². Compare earlier prismatoid adj., prismatoidal adj. N.E.D. (1908) gives the pronunciation as (pri·zmătid) /ˈprɪzmətɪd/. Crystallography. Obsolete. rare. A. adj. Designating a crystalline form consisting of three or more faces parallel to an axis. Cf. prism n. 5. ΚΠ 1895 N. Story-Maskelyne Crystallogr. vii. §302 The designations of..the horizontal prismatid forms as domes, the vertical one as a prism, have already been given in article 109. B. n. A crystalline form of this kind. ΚΠ 1895 N. Story-Maskelyne Crystallogr. vii. §328 Among the varieties of prismatids, of which the poles always lie in a zone perpendicular to the zone-circle of symmetry, two are especially noticeable. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online June 2020). < adj.n.1895
随便看	pubises pubkeeper public public access public accountability public act public address public address equipment public address system public affairs public analyst public attorney public bar public bath public bill public box public broadcaster public broadcasting public building public charge public choice public commoner public company public convenience public corporation