pleuronn.

Brit.

/ˈplʊərɒn/,

/ˈplɔːrɒn/, U.S.

/ˈplʊˌrɑn/

Inflections: Plural pleura.

Origin: A borrowing from Greek. Etymon: Greek πλευρόν.

Etymology: < ancient Greek πλευρόν rib, side, of unknown origin, but related to ancient Greek πλευρά rib, side (see pleura n.).

Anatomy and Zoology.

The lateral part of the body-wall, the side of the body; spec. (a) either of the lateral regions of each segment of the body of an arthropod, which are situated between the sternum and the tergum and are usually sclerotized; (b) each of the ribs comprising the lateral lobes of a trilobite.Not distinguishable from pleurum when used in the plural only.

ΘΚΠ

the world > life > the body > external parts of body > trunk > side > [noun]

sideOE

coastc1420

pleuron1706

costal1816

pleurum1876

the world > animals > invertebrates > phylum Arthropoda > [noun] > member of > parts of > side of segment

pleuron1706

pleurite1867

pleurum1876

1706 Phillips's New World of Words (new ed.) Pleuron, a Side or Rib.

1872 H. A. Nicholson Man. Palæontol. 146 A plate which is called the pleuron, or pleura.

1880 T. H. Huxley Crayfish iii. 96 Where these two join, a broad plate is sent down on each side, which overlaps the bases of the abdominal appendages and is known as the pleuron.

1939 T. L. Green Pract. Animal Biol. i. 47 The side plates or pleura (one each side) which are lateral extensions of the tergum with which they appear to be continuous.

1966 Amer. Midland Naturalist 75 151 Regeneration of the excision produced a deformed pleuron, but clipping the pleura..apparently had little effect upon the general health of the crayfish.

1979 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. xi. 264/1 Each pleuron [in the trilobite Acaste] is indented by an oblique pleural furrow.

1994 P. J. Gullan & P. S. Cranston Insects ii. 29/2 Four principal regions of the body surface can be recognized: the dorsum or upper surface; the venter or lower surface; and the two lateral pleura..bearing limb bases... The major segmental sclerites are the tergum (the dorsal plate), the sternum (the ventral plate), and the pleuron (the side plate).

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

单词	pleuron
释义	pleuronn. Brit. /ˈplʊərɒn/, /ˈplɔːrɒn/, U.S. /ˈplʊˌrɑn/ Inflections: Plural pleura. Origin: A borrowing from Greek. Etymon: Greek πλευρόν. Etymology: < ancient Greek πλευρόν rib, side, of unknown origin, but related to ancient Greek πλευρά rib, side (see pleura n.). Anatomy and Zoology. The lateral part of the body-wall, the side of the body; spec. (a) either of the lateral regions of each segment of the body of an arthropod, which are situated between the sternum and the tergum and are usually sclerotized; (b) each of the ribs comprising the lateral lobes of a trilobite.Not distinguishable from pleurum when used in the plural only. ΘΚΠ the world > life > the body > external parts of body > trunk > side > [noun] sideOE coastc1420 pleuron1706 costal1816 pleurum1876 the world > animals > invertebrates > phylum Arthropoda > [noun] > member of > parts of > side of segment pleuron1706 pleurite1867 pleurum1876 1706 Phillips's New World of Words (new ed.) Pleuron, a Side or Rib. 1872 H. A. Nicholson Man. Palæontol. 146 A plate which is called the pleuron, or pleura. 1880 T. H. Huxley Crayfish iii. 96 Where these two join, a broad plate is sent down on each side, which overlaps the bases of the abdominal appendages and is known as the pleuron. 1939 T. L. Green Pract. Animal Biol. i. 47 The side plates or pleura (one each side) which are lateral extensions of the tergum with which they appear to be continuous. 1966 Amer. Midland Naturalist 75 151 Regeneration of the excision produced a deformed pleuron, but clipping the pleura..apparently had little effect upon the general health of the crayfish. 1979 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. xi. 264/1 Each pleuron [in the trilobite Acaste] is indented by an oblique pleural furrow. 1994 P. J. Gullan & P. S. Cranston Insects ii. 29/2 Four principal regions of the body surface can be recognized: the dorsum or upper surface; the venter or lower surface; and the two lateral pleura..bearing limb bases... The major segmental sclerites are the tergum (the dorsal plate), the sternum (the ventral plate), and the pleuron (the side plate). This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1706
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