a. [f. TRANS- 5 + L. ocul-us eye: cf. ocular.] Lying across the eye: applied to a longitudinal stripe or color marking.
1872. Coues, Key N. Amer. Birds, 20. When these [lines] are continuous through the eye, they form a transocular line.
1876. Proc. Zool. Soc., 20 June, 660. The crown being pure white, with only a transocular line on each side of the head.
