Webster
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Webster’s Revised Unabridged Dictionary · 1913

Dimidiate

Di·mid′i·ate (dĭ·mĭd′ĭ·āt), a. [L. dimidiatus, p. p. of dimidiare to halve, fr. dimidius half. See Demi-.] 1. Divided into two equal parts; reduced to half in shape or form.

2. (Biol.) (a) Consisting of only one half of what the normal condition requires; having the appearance of lacking one half; as, a dimidiate leaf, which has only one side developed. (b) Having the organs of one side, or half, different in function from the corresponding organs on the other side; as, dimidiate hermaphroditism.

Di·mid′i·ate, v. t. [imp. & p. p. Dimidiated; p. pr. & vb. n. Dimidiating.] 1. To divide into two equal parts. [Obs.] Cockeram.

2. (Her.) To represent the half of; to halve.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty.