entrochusn.

Brit.

/ˈɛntrəkəs/, U.S.

/ˈɛntrəkəs/

Forms: 1600s entrochos, 1600s–1800s entrochi (plural), 1600s–1900s entrochus.

Origin: A borrowing from Latin. Etymon: Latin entrochus.

Etymology: < post-classical Latin entrochus (1546 or earlier) < ancient Greek ἐν in (see en- prefix²) + τροχός wheel (see trochus n.). With the semantic motivation compare trochite n.In quot. 1661 with remodelling after ancient Greek τροχός.

Palaeontology. Now historical and rare.

A section of the stem of a fossil crinoid of the (disused) genus Entrochus, consisting of several rounded segments or ossicles having prominent central cavities. Sometimes also: a single ossicle; = trochite n.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > division Pelmatozoa > class Crinoidea > fossil or encrinite

entrochus1661

syntrochite1681

Encrinus1762

encrinite1808

stone-lily1808

crinite1826

stone-flower1847

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > division Pelmatozoa > class Crinoidea > fossil or encrinite > wheel-like joint or entrochite

entrochus1661

trochite1676

entrochite1681

stelechite1681

stelentrochite1681

wheel-stone1846

1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia sig. f Some Represent the effigies of things, as the enorchis, entrochos, enosteos, leucophthalmos, aegophthalmos, lycophthalmos, astroites, and the achates of woods and rivers.

1674 Philos. Trans. 1673 (Royal Soc.) 8 6181 I send you an Account of some of the Parts of certain Stones figured like Plants; which Agricola..calls Trochitæ, and the compound ones Entrochi.

1751 J. Hill Hist. Materia Medica vi. 309 The Entrochus and Trochites differ no otherwise than as separated Parts or Congeries of the same Body.

1794 R. J. Sulivan View of Nature I. 488 The entrochi and the relics of other fishes.

1843 G. Mantell Jrnl. 10 July (1940) 173 Cherts with casts of entrochi (pulley stones).

1915 G. F. Kunz Magic of Jewels & Charms iv. 194 The sections of the stem-like fossils called entrochus by the older writers have been named St. Cuthbert's beads.

2005 Earth Sci. Hist. 24 84 Two or more Trochites preserved together..were named Entrochus.

This entry has been updated (OED Third Edition, September 2018; most recently modified version published online June 2022).

单词	entrochus
释义	entrochusn. Brit. /ˈɛntrəkəs/, U.S. /ˈɛntrəkəs/ Forms: 1600s entrochos, 1600s–1800s entrochi (plural), 1600s–1900s entrochus. Origin: A borrowing from Latin. Etymon: Latin entrochus. Etymology: < post-classical Latin entrochus (1546 or earlier) < ancient Greek ἐν in (see en- prefix²) + τροχός wheel (see trochus n.). With the semantic motivation compare trochite n.In quot. 1661 with remodelling after ancient Greek τροχός. Palaeontology. Now historical and rare. A section of the stem of a fossil crinoid of the (disused) genus Entrochus, consisting of several rounded segments or ossicles having prominent central cavities. Sometimes also: a single ossicle; = trochite n. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > division Pelmatozoa > class Crinoidea > fossil or encrinite entrochus1661 syntrochite1681 Encrinus1762 encrinite1808 stone-lily1808 crinite1826 stone-flower1847 the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > division Pelmatozoa > class Crinoidea > fossil or encrinite > wheel-like joint or entrochite entrochus1661 trochite1676 entrochite1681 stelechite1681 stelentrochite1681 wheel-stone1846 1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia sig. f Some Represent the effigies of things, as the enorchis, entrochos, enosteos, leucophthalmos, aegophthalmos, lycophthalmos, astroites, and the achates of woods and rivers. 1674 Philos. Trans. 1673 (Royal Soc.) 8 6181 I send you an Account of some of the Parts of certain Stones figured like Plants; which Agricola..calls Trochitæ, and the compound ones Entrochi. 1751 J. Hill Hist. Materia Medica vi. 309 The Entrochus and Trochites differ no otherwise than as separated Parts or Congeries of the same Body. 1794 R. J. Sulivan View of Nature I. 488 The entrochi and the relics of other fishes. 1843 G. Mantell Jrnl. 10 July (1940) 173 Cherts with casts of entrochi (pulley stones). 1915 G. F. Kunz Magic of Jewels & Charms iv. 194 The sections of the stem-like fossils called entrochus by the older writers have been named St. Cuthbert's beads. 2005 Earth Sci. Hist. 24 84 Two or more Trochites preserved together..were named Entrochus. This entry has been updated (OED Third Edition, September 2018; most recently modified version published online June 2022). < n.1661
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