SUBDUPLICATE

subduplicate. Subduplicate, a. in the ratio of the square roots

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Sub‐du″pli‐cate (?), a. (Math.) Expressed by the square root; — said of ratios. Subduplicate ratio, the ratio of the square roots, or the square root of a ratio; thus, the subduplicate ratio of a to b is √a to √b, or √a⁄b.