extensĭo, ōnis, f. [extendo].
I A stretching out , extension.
A Lit.: chordarum, Isid. 3, 15, 1.—Esp. of the body or limbs: corporum, Cael. Aur. Acut. 3, 6, 63; id. Tard. 2, 1, 2; 3; 14; 16: crurum, id. ib. 2, 1, 44; so, alarum, a spreading , Vulg. Isa. 8, 8: membranae (in a water-fowl's foot), Ambros. Hexaem. 5, 22, 74: follis nostri corporei, Arn. in Psa. 149.—
B Transf.
α A swelling , tumor : extensiones et tubercula in dorso, Veg. 3, 15, 2.—
β An extension , extended space : caelorum, Hier. in Isa. 12, 44, § 24.—
II Trop., a strain , stretching : mentis = ἔκστασις, i. e. fury , Cael. Aur. Tard. 1, 5, 150.