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单词 prismatoidal
释义

prismatoidaladj.

Brit. /ˌprɪzməˈtɔɪdl/, U.S. /ˌprɪzməˈtɔɪd(ə)l/
Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρισματ- , πρίσμα , -oidal suffix.
Etymology: < ancient Greek πρισματ-, πρίσμα prism n. + -oidal suffix. Compare later prismatoid adj.
Now rare.
Having the approximate form of a prism; composed of roughly prismatic shapes. Also: = † prismatoid adj. 1 (Crystallography obsolete rare).
ΘΚΠ
the world > space > shape > angularity > specific angular shape > [adjective] > prismatic
prismatical1611
prismatic1668
diamond-cut1703
prismated1816
prismatoidal1821
prismoidal1826
prismoid1840
prismate1858
the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > prismatical or prismoidal
prismatical1654
prismatoidal1821
prismoidal1826
prismoid1840
prismate1858
1821 R. Jameson Man. Mineral. 190 Emerald... Cleavage prismato-rhomboidal, or prismatoidal.
1821 A. Ure Dict. Chem. at Xeolite The name of a very extensive mineral genus, containing the following species:..prismatoidal zeolite, or stilbite.
1858 Sci. Amer. 15 May 287/1 Orpiment is a general name for two sulphurets of arsenic, the yellow or prismatoidal sulphuret, and the red or ruby sulpuret.
1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. §10 Estimator. A sliding rule, by which the volume of prismatoidal bodies (embankments, ditches, cuttings, &c., occurring in the construction of rail~roads, canals, fortifications, &c.) is calculated mechanically.
1986 Acta Astronautica 13 652/1 Against the background of the eutectic matrix.., we observed prismatoidal inclusions of white pickling phase.
1992 Proc. SPIE (Internat. Soc. Optical Engin.) 1783 366-77 Computer calculations of electric field distribution in VLEDs and FETRODEs with cylindrical and prismatoidal geometry are presented.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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adj.1821
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