mesopodiumn.

Brit.

/ˌmɛsə(ʊ)ˈpəʊdɪəm/, U.S.

/ˌmɛzoʊˈpoʊdiəm/; see also meso- comb. form.

Origin: Formed within English, by compounding. Etymons: meso- comb. form, -podium comb. form.

Etymology: < meso- comb. form + -podium comb. form. In sense 3 after mesopodial adj.

1. Zoology. The middle lobe of the foot of a mollusc.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > mollusc or shell-fish > parts of mollusc

ungulaa1382

mantlea1475

trunk1661

diaphragm1665

lid1681

operculum1681

ear1688

beard1697

corslet1753

scar1793

opercle1808

pleura1826

pallium1834

byssus1835

cephalic ganglia1835–6

opercule1836

lingual ribbon1839

tube1839

cloak1842

test1842

collar1847

testa1847

rachis1851

uncinus1851

land-shell1853

mantle cavity1853

mesopodium1853

propodium1853

radula1853

malacology1854

gill comb1861

pallial cavity1862

tongue-tootha1877

mesopode1877

odontophore1877

pallial chamber1877

shell-gland1877

rasp1879

protopodium1880

ctenidium1883

osphradium1883

shell-sac1883

tooth-ribbon1883

megalaesthete1885

rachidian1900

scungille1953

tentacle-sheath-

1853 T. H. Huxley in Philos. Trans. (Royal Soc.) 143 i. 36 The posterior edge of the propodium carries a cup-shaped disk... This is commonly called the sucker...It may be called the mesopodium.

1883 Encycl. Brit. XVI. 653/1 The foot of the Azygobranchia..often divided into..a fore, middle, and hind lobe, pro-, meso-, and metapodium.

1904 Amer. Naturalist 38 212 From the mesopodium arise the parapodia.

1962 V. Fretter & G. Graham Brit. Prosobranch Molluscs v. 111 Primitively the molluscan foot is arranged in three sections lying one behind the other... These are the propodium, the mesopodium and the metapodium.

1981 Proc. Biol. Soc. Washington 94 607 One of the most unusual structures..is the large ovipositor..on the right median part of the mesopodium.

2. Botany. Originally; the region of a leaf primordium corresponding to the petiole; the petiole itself. Later also: an internode between prophylls in certain compound inflorescences.

ΚΠ

1884 F. O. Bower in Philos. Trans. (Royal Soc.) 175 570 A basal part or hypopodium may be recognised, which coincides with Eichler's ‘blattgrund’: a median, elongated part, the mesopodium, which coincides with the petiole: and thirdly, an apical part, the epipodium.

1903 Bull. Torrey Bot. Club 30 504 The author made a series of observations upon the effect of the removal of the epipodium and mesopodium of the leaves..upon the stipules of the hypopodium.

1933 Amer. Jrnl. Bot. 20 379 Characteristic growth processes in the foliage leaf at an early stage consist in (a) the rapid development of a lamina from the epipodium and (b) the demarcation in the basal region of a thickened mesopodium and a narrowly winged hypopodium.

1988 Ann. Missouri Bot. Garden 75 231/2 If the two prophylls are separated by another internode, this is called the mesopodium.

3. Zoology. The section of a tetrapod limb (esp. of an amphibian or reptile) constituted by the carpus (in the forelimb) or the tarsus (in the hind limb); the mesopodial bones collectively.

ΚΠ

1986 Jrnl. Morphol. 190 192/1 The mesopodia..appear normally to arise by fission of precartilaginous or cartilaginous primordia during both native and regenerative skeletal patterning.

1991 Biol. Jrnl. Linn. Soc. 43 81 In the mesopodium, the sequence of mineralization..matches the sequences if prechondrogenic condensation in the developing Ambystoma limb.

1997 Jrnl. Vertebr. Paleontol. 17 534 Delayed ossification of the mesopodium is not observed in ichthyosaurs.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesopodium
释义	mesopodiumn. Brit. /ˌmɛsə(ʊ)ˈpəʊdɪəm/, U.S. /ˌmɛzoʊˈpoʊdiəm/; see also meso- comb. form. Origin: Formed within English, by compounding. Etymons: meso- comb. form, -podium comb. form. Etymology: < meso- comb. form + -podium comb. form. In sense 3 after mesopodial adj. 1. Zoology. The middle lobe of the foot of a mollusc. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > mollusc or shell-fish > parts of mollusc ungulaa1382 mantlea1475 trunk1661 diaphragm1665 lid1681 operculum1681 ear1688 beard1697 corslet1753 scar1793 opercle1808 pleura1826 pallium1834 byssus1835 cephalic ganglia1835–6 opercule1836 lingual ribbon1839 tube1839 cloak1842 test1842 collar1847 testa1847 rachis1851 uncinus1851 land-shell1853 mantle cavity1853 mesopodium1853 propodium1853 radula1853 malacology1854 gill comb1861 pallial cavity1862 tongue-tootha1877 mesopode1877 odontophore1877 pallial chamber1877 shell-gland1877 rasp1879 protopodium1880 ctenidium1883 osphradium1883 shell-sac1883 tooth-ribbon1883 megalaesthete1885 rachidian1900 scungille1953 tentacle-sheath- 1853 T. H. Huxley in Philos. Trans. (Royal Soc.) 143 i. 36 The posterior edge of the propodium carries a cup-shaped disk... This is commonly called the sucker...It may be called the mesopodium. 1883 Encycl. Brit. XVI. 653/1 The foot of the Azygobranchia..often divided into..a fore, middle, and hind lobe, pro-, meso-, and metapodium. 1904 Amer. Naturalist 38 212 From the mesopodium arise the parapodia. 1962 V. Fretter & G. Graham Brit. Prosobranch Molluscs v. 111 Primitively the molluscan foot is arranged in three sections lying one behind the other... These are the propodium, the mesopodium and the metapodium. 1981 Proc. Biol. Soc. Washington 94 607 One of the most unusual structures..is the large ovipositor..on the right median part of the mesopodium. 2. Botany. Originally; the region of a leaf primordium corresponding to the petiole; the petiole itself. Later also: an internode between prophylls in certain compound inflorescences. ΚΠ 1884 F. O. Bower in Philos. Trans. (Royal Soc.) 175 570 A basal part or hypopodium may be recognised, which coincides with Eichler's ‘blattgrund’: a median, elongated part, the mesopodium, which coincides with the petiole: and thirdly, an apical part, the epipodium. 1903 Bull. Torrey Bot. Club 30 504 The author made a series of observations upon the effect of the removal of the epipodium and mesopodium of the leaves..upon the stipules of the hypopodium. 1933 Amer. Jrnl. Bot. 20 379 Characteristic growth processes in the foliage leaf at an early stage consist in (a) the rapid development of a lamina from the epipodium and (b) the demarcation in the basal region of a thickened mesopodium and a narrowly winged hypopodium. 1988 Ann. Missouri Bot. Garden 75 231/2 If the two prophylls are separated by another internode, this is called the mesopodium. 3. Zoology. The section of a tetrapod limb (esp. of an amphibian or reptile) constituted by the carpus (in the forelimb) or the tarsus (in the hind limb); the mesopodial bones collectively. ΚΠ 1986 Jrnl. Morphol. 190 192/1 The mesopodia..appear normally to arise by fission of precartilaginous or cartilaginous primordia during both native and regenerative skeletal patterning. 1991 Biol. Jrnl. Linn. Soc. 43 81 In the mesopodium, the sequence of mineralization..matches the sequences if prechondrogenic condensation in the developing Ambystoma limb. 1997 Jrnl. Vertebr. Paleontol. 17 534 Delayed ossification of the mesopodium is not observed in ichthyosaurs. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1853
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