planospiraladj.n.

Brit.

/ˌpleɪnəʊˈspʌɪrəl/,

/ˌpleɪnəʊˈspʌɪrl̩/, U.S.

/ˌpleɪnoʊˈspaɪr(ə)l/

Origin: Formed within English, by compounding. Etymons: plano- comb. form¹, spiral adj.¹ and adv.

Etymology: < plano- comb. form¹ + spiral adj.¹ and adv. Compare scientific Latin planospira (1822 as specific name).

= planispiral adj. Also occasionally as n.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Lepidoptera or butterflies and moths > [adjective] > of parts > of spiral form (of proboscis)

planospiral1847

planispiral1890

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [adjective] > belonging to order Pulmonifera > of or belonging to Inoperculata > of shells of genus Planorbis

planospiral1847

planispiral1890

flat-coiled1901

1847 Times 25 Jan. 6/6 A planospiral rotator is concealed within the hoop of a nave of one of the hind wheels, and gives action to a shaft or small rod of iron which is carried horizontally nearly as far as the opposite wheel.

1928 Q. Rev. Biol. 3 103/2 It entirely ignores the meaning of their prevailingly high and often greatly compressed, bilaterally symmetrical, planospiral shells.

1986 G. Culverwell tr. P. Arduini & G. Teruzzi Macdonald Encycl. Fossils No. 67 Gastropods included in the genus Lecanospira possess a modest-sized shell with planospiral coiling.

1995 D. L. Baars Navajo Country Gloss. 226 Shells that are chambered, usually coiled in a planospiral, but occasionally straight.

Derivatives

planoˈspirally adv.

ΚΠ

1967 Philos. Trans. (Royal Soc.) B. 252 88 (caption) Caprina adversa (with almost plano-spirally coiled upper valve).

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	planospiral
释义	planospiraladj.n. Brit. /ˌpleɪnəʊˈspʌɪrəl/, /ˌpleɪnəʊˈspʌɪrl̩/, U.S. /ˌpleɪnoʊˈspaɪr(ə)l/ Origin: Formed within English, by compounding. Etymons: plano- comb. form¹, spiral adj.¹ and adv. Etymology: < plano- comb. form¹ + spiral adj.¹ and adv. Compare scientific Latin planospira (1822 as specific name). = planispiral adj. Also occasionally as n. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Lepidoptera or butterflies and moths > [adjective] > of parts > of spiral form (of proboscis) planospiral1847 planispiral1890 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [adjective] > belonging to order Pulmonifera > of or belonging to Inoperculata > of shells of genus Planorbis planospiral1847 planispiral1890 flat-coiled1901 1847 Times 25 Jan. 6/6 A planospiral rotator is concealed within the hoop of a nave of one of the hind wheels, and gives action to a shaft or small rod of iron which is carried horizontally nearly as far as the opposite wheel. 1928 Q. Rev. Biol. 3 103/2 It entirely ignores the meaning of their prevailingly high and often greatly compressed, bilaterally symmetrical, planospiral shells. 1986 G. Culverwell tr. P. Arduini & G. Teruzzi Macdonald Encycl. Fossils No. 67 Gastropods included in the genus Lecanospira possess a modest-sized shell with planospiral coiling. 1995 D. L. Baars Navajo Country Gloss. 226 Shells that are chambered, usually coiled in a planospiral, but occasionally straight. Derivatives planoˈspirally adv. ΚΠ 1967 Philos. Trans. (Royal Soc.) B. 252 88 (caption) Caprina adversa (with almost plano-spirally coiled upper valve). This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < adj.n.1847
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