Akademik

Bilateral
Having, or relating to, two sides. Bilateral is as opposed, for example, to unilateral (which means having, or relating to, one side).
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Relating to, or having, two sides. [bi- + L. latus, side]

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bi·lat·er·al (')bī-'lat-ə-rəl, -'la-trəl adj
1) of, relating to, or affecting the right and left sides of the body or the right and left members of paired organs <\bilateral nephrectomy> <\bilateral tumors of the adrenal glands>
2) having bilateral symmetry
bi·lat·er·al·ism -.iz-əm n
bi·lat·er·al·i·ty (')bī-.lat-ə-'ral-ət-ē, -.la-'tral- n, pl -ties
bi·lat·er·al·ly (')bī-'lat-ə-rə-lē, -'la-trə-lē adv

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adj.
(in anatomy) relating to or affecting both sides of the body or of a tissue or organ or both of a pair of organs (e.g. the eyes, breasts, or ovaries).

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bi·lat·er·al (bi-latґər-əl) [bi- + lateral] having two sides, or pertaining to both sides.

Medical dictionary. 2011.