Definition of "pectinal" []

• A fish whose bones resemble the teeth of a comb. (noun)

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• "The silver-fir, of a whitish colour, like rosemary under the leaf, is distinguished from the rest, by the pectinal shape of it: The cones not so large as the _picea_, grow also upright, and this they call the female: For I find botanists not unanimously agreed about the sexes of trees."