quadrupedalismn.

Brit.

/ˌkwɒdrᵿˈpiːdl̩ɪz(ə)m/,

/ˌkwɒdrᵿˈpɛdl̩ɪz(ə)m/, U.S.

/ˌkwɑdrəˈpɛdlˌɪzəm/,

/ˌkwɑdrəˈpidlˌɪzəm/

Origin: Formed within English, by derivation. Etymons: quadrupedal adj., -ism suffix.

Etymology: < quadrupedal adj. + -ism suffix. Compare earlier quadrupedism n.

Chiefly Zoology.

The state or habit of being quadrupedal.

ΚΠ

1935 Man 35 4 Morton has pointed out that the terrestrial posture in the modern large apes is a ‘semi-erect quadrupedalism, and not a semi-erect bipedalism’.

1980 J. R. Hinchliffe & D. R. Johnson Devel. Vertebr. Limb ii. 35 The herbivorous sauropods..were considered..to have reverted to quadrupedalism as a result of their huge size.

2001 J. Alcock Triumph of Sociobiol. iv. 75 What were the precise changes in which of our putative ancestors..that resulted in the evolutionary conversion of quadrupedalism to bipedalism?

This is a new entry (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	quadrupedalism
释义	quadrupedalismn. Brit. /ˌkwɒdrᵿˈpiːdl̩ɪz(ə)m/, /ˌkwɒdrᵿˈpɛdl̩ɪz(ə)m/, U.S. /ˌkwɑdrəˈpɛdlˌɪzəm/, /ˌkwɑdrəˈpidlˌɪzəm/ Origin: Formed within English, by derivation. Etymons: quadrupedal adj., -ism suffix. Etymology: < quadrupedal adj. + -ism suffix. Compare earlier quadrupedism n. Chiefly Zoology. The state or habit of being quadrupedal. ΚΠ 1935 Man 35 4 Morton has pointed out that the terrestrial posture in the modern large apes is a ‘semi-erect quadrupedalism, and not a semi-erect bipedalism’. 1980 J. R. Hinchliffe & D. R. Johnson Devel. Vertebr. Limb ii. 35 The herbivorous sauropods..were considered..to have reverted to quadrupedalism as a result of their huge size. 2001 J. Alcock Triumph of Sociobiol. iv. 75 What were the precise changes in which of our putative ancestors..that resulted in the evolutionary conversion of quadrupedalism to bipedalism? This is a new entry (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1935
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