pentamerismn.

Brit.

/pɛnˈtamərɪz(ə)m/, U.S.

/pɛnˈtæməˌrɪz(ə)m/

Origin: Formed within English, by compounding. Etymons: penta- comb. form, -merism comb. form.

Etymology: < penta- comb. form + -merism comb. form, after pentamerous adj. Compare pentamery n.

Botany and Zoology. rare.

= pentamery n.

ΘΚΠ

the world > animals > animal body > general parts > [noun] > regions comprising segments > segment > of a pentamerous animal > condition of being pentamerous

pentamerism1900

1900 E. R. Lankester Treat. Zool. iii. 19 Variation from pentamerism may arise suddenly (discontinuous meristic variation).

1998 Paleobiology 24 200 (title) A ‘rays-as-appendages’ model for the origin of pentamerism in echinoderms.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pentamerism
释义	pentamerismn. Brit. /pɛnˈtamərɪz(ə)m/, U.S. /pɛnˈtæməˌrɪz(ə)m/ Origin: Formed within English, by compounding. Etymons: penta- comb. form, -merism comb. form. Etymology: < penta- comb. form + -merism comb. form, after pentamerous adj. Compare pentamery n. Botany and Zoology. rare. = pentamery n. ΘΚΠ the world > animals > animal body > general parts > [noun] > regions comprising segments > segment > of a pentamerous animal > condition of being pentamerous pentamerism1900 1900 E. R. Lankester Treat. Zool. iii. 19 Variation from pentamerism may arise suddenly (discontinuous meristic variation). 1998 Paleobiology 24 200 (title) A ‘rays-as-appendages’ model for the origin of pentamerism in echinoderms. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1900
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