adv. [f. UNILATERAL a. + -LY2.] In a unilateral manner: a. Bot., Zool., and Path. On one side or surface only.
1830. Lindley, Nat. Syst. Bot., 162. Flowers often arranged unilaterally along the divisions of the cymes.
1852. Dana, Crust., II. 1297. With several setæ at apex, which are unilaterally setulose.
1875. Bennett & Dyer, trans. Sachs Bot., 463. The descending portions joining others lower down either unilaterally or on both sides.
b. In respect of one side only; by means of or on the part of one side or party; one-sidedly.
1858. Gladstone, Homer, II. 297. But then such representations in Homer are not perseveringly, much less are they unilaterally, developed.
1875. Poste, Gaius, I. Introd. (ed. 2), 8. A judgment may be unilaterally penal, that is, may impoverish the defendant without enriching the plaintiff.