tensĭo — Lewis & Short
tensĭo, ōnis, f.tendo,
I a stretching, stretching out, extension (post-Aug. and very rare).
I In gen.: papilionum, a setting up, pitching, Hyg. Gromat. init.— Plur.: bracchia, quae in eas tensiones includuntur, Vitr 1, 1 med.—
II In partic., a tension or contraction of the nerves, as a disease:
nervorum,Scrib. Comp. 101; 255:
praecordiorum,id. ib. 260; Veg. Vet. 1, 53 fin.