• WordNet 3.6
    • adj metacentric having two equal arms because of the median position of the centromere "a metacentric chromosome"
    • adj metacentric of or relating to the metacenter
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Century Dictionary and Cyclopedia
    • metacentric Of or pertaining to the metacenter.
    • metacentric In biology, pertaining to a new center around which new diverging modifications are produced.
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In literature:

Round the top of the scale, at D, are engraved four different draughts, and under these are the metacentric heights.
"Scientific American Supplement, No. 385, May 19, 1883" by Various
Thus, for instance, the archecentric condition of any Avian structure is a metacentre of the Sauropsidan stem.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1" by Various