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单词 protopodium
释义

protopodiumn.

Brit. /ˌprəʊtə(ʊ)ˈpəʊdɪəm/, U.S. /ˌproʊdoʊˈpoʊdiəm/
Inflections: Plural protopodia.
Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: proto- comb. form, -podium comb. form.
Etymology: < proto- comb. form + -podium comb. form, after post-classical Latin protopodium (H. Gernacher 1874, in Zeitschr. f. wissensch. Zool. 24 465).
Zoology. rare.
A primitive, typical, or unmodified foot.
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-
1880 W. K. Brooks Devel. of Squid (Anniv. Mem. Boston Soc. Nat. Hist.) 21 The innervation of the siphon from the pedal ganglion leads him to regard this as the foot, and he [sc. Von Jhering (1877)] concludes that the valve of the siphon is the true foot or protopodium, and the two lateral folds pteropodia.
1903 Amer. Naturalist 37 351 Dr. Willey's paper..argues for the conclusion that the siphon represents the protopodium of the gasteropod and the tentacles the epipodia.
1990 Q. Rev. Biol. 65 94/1 His claim.., with his suggested ‘evolution’ of additional leg segments starting from five-segmented ‘protopodia’, is not convincing for various arachnid groups.

Derivatives

protopodial adj. Obsolete rare Apparently only attested in dictionaries or glossaries.
ΚΠ
1890 Cent. Dict. Protopodial, of or pertaining to the protopodium, or having its character.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).
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n.1880
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更新时间:2024/12/22 18:01:08