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metamere

Definitions

  • WordNet 3.6
    • n metamere one of a series of similar body segments into which some animals are divided longitudinally
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Webster's Revised Unabridged Dictionary
    • n Metamere (Biol) One of successive or homodynamous parts in animals and plants; one of a series of similar parts that follow one another in a vertebrate or articulate animal, as in an earthworm; a segment; a somite. See Illust. of Loeven's larva.
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Century Dictionary and Cyclopedia
    • n metamere In zoology, one of a longitudinal series of parts which are serially homologous with one another. See metameric, metamerism. The construction of bilaterally symmetrical bodies by metamerism is common and usual in the animal kingdom, and is exhibited in such diversity of details that metameres have received several different names. The most general name is segment; but, since several morphologically distinct metameres may coalesce in one segment, the stricter term for an individual metamere, such as each morphological segment or ring of an annelid, crustacean, insect, or other articulate animal, is somite or arthromere. A morphological metamere of a vertebrate has been called a diar-thromere. Compare actinomere and antimere.
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Etymology

Webster's Revised Unabridged Dictionary
Pref. meta-, + -mere,

Usage

In literature:

One bead, one carriage, one vertebra, would be a metamere.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
Metameric: made up of segments or metameres.
"Explanation of Terms Used in Entomology" by John. B. Smith
The only other example which we have of this metamerism in the Mollusca is presented by the Chitons.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6" by Various
It is important to notice that the metameric plan of growth of Chaetopods is still preserved.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7" by Various
Each such "mere" is often called a "metamere.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6" by Various
Remarkable for the adhesion of incomplete fission-products in a metameric series.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 5" by Various
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