英语词汇“protoprism”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

protoprism n.

Brit.

/ˈprəʊtə(ʊ)ˌprɪz(ə)m/

U.S.

/ˈproʊdoʊˌprɪz(ə)m/

Crystallography the primitive prism of a crystal system, in which the horizontal axes of the system intersect the edges of the prism (as opposed to one in which the axes intersect the faces at right angles).

ΚΠ

1890 Cent. Dict. at Prism In the tetragonal system the unit prism is sometimes called a protoprism, or prism of the first order.

1895 N. Story-Maskelyne Crystallogr. 283 The hexagonal deutero-prism..is identical in features with the proto-prism... The horizontal sections of the proto- and deutero-prisms are regular hexagons.

1922 A. E. H. Tutton Crystallogr. I. 193 Tetragonal prism of the first order, {110}, also called protoprism.

单词	protoprism
释义	> as lemmas protoprism protoprism n. Brit. /ˈprəʊtə(ʊ)ˌprɪz(ə)m/ , U.S. /ˈproʊdoʊˌprɪz(ə)m/ Crystallography the primitive prism of a crystal system, in which the horizontal axes of the system intersect the edges of the prism (as opposed to one in which the axes intersect the faces at right angles). ΚΠ 1890 Cent. Dict. at Prism In the tetragonal system the unit prism is sometimes called a protoprism, or prism of the first order. 1895 N. Story-Maskelyne Crystallogr. 283 The hexagonal deutero-prism..is identical in features with the proto-prism... The horizontal sections of the proto- and deutero-prisms are regular hexagons. 1922 A. E. H. Tutton Crystallogr. I. 193 Tetragonal prism of the first order, {110}, also called protoprism. extracted from proto-comb. form < as lemmas
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