Definitions

from The Century Dictionary and Cyclopedia

  • n. The posterior groove on the cephalon of a trilobite, dividing the glabella from the occipital segment. Also called nuchal furrow.

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  • "The posterior groove on the cephalon of a trilobite, dividing the glabella from the occipital segment. Also called nuchal furrow."

    --Cent. Dict.

    July 9, 2012