outer Copy link • outer: extĕrior, us: opp. interior, Cic. Tim. 7. the o. works (of defence), ex. munitiones, Caes. B. G. 7, 87. Sup. extrēmus, extĭmus, outermost: the o. town of the Allobroges, extremum Allobrogum oppidum, Caes. B. G. 1, 6: the o. (circle) which includes all the rest, extimus, qui reliquos omnes complectitur, Cic. Rep. 6, 17: see also farthest. Join: extremus atque ultimus, Cic. See also outside, outward, external.