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Definition of Pygidium
1. n. The caudal plate of trilobites, crustacean, and certain insects. See Illust. of Limulus and Trilobite.
Definition of Pygidium
1. Noun. (zoology) The caudal plate of trilobites, crustacea, and certain insects. ¹
¹ Source: wiktionary.com
Definition of Pygidium
1. the posterior region of certain invertebrates [n -IA] : PYGIDIAL [adj]
Lexicographical Neighbors of Pygidium
Literary usage of Pygidium
Below you will find example usage of this term as found in modern and/or classical literature:
1. Transactions of the American Entomological Society. by American Entomological Society (1891)
"Muir, pygidium truncat«. emarginate at middle; posterior femora with an acute tooth.
Female, pygidium elongate, rounded at tip, posterior femora usually ..."
2. Cambrian Geology and Paleontology by Charles Doolittle Walcott (1908)
"Beneath and back of the large spine there are from two to six rudimentary segments
without pleural lobes, and a simple plate-like pygidium. 6. ..."
3. Report of the Geological Survey of Ohio by Geological Survey of Ohio (1893)
"It has 11 segments in the thoracic region, the first three lateral segments of
the pygidium are distinct, the fourth is visible, the fifth and sixth are ..."
4. Report of a Geological Survey of Wisconsin, Iowa, and Minnesota: And by David Dale Owen, Joseph Leidy, Joseph Granville Norwood, United States General Land Office, Charles Christopher Parry, Henry Pratten, Benjamin Franklin Shumard, Charles Whittlesey (1852)
"... near the junction of F. 3, A, and F. 3, B, mouth of Otter Crook. Turkey River.
Iowa. Fis;. 4. pygidium of the B ... pygidium of a new species of ..."
5. Science by American Association for the Advancement of Science (1884)
"On a more careful examination, numerous fine slender filaments were discovered,
both beneath the thorax and pygidium, and also near the posterior end of the ..."
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