I. Prop., a looking on all sides, a looking about: “singulorum, sibi horizontem facit,” Macr. Somn. Scip. 1, 15, 17.—
II. Trop., foresight, circumspection, caution (v. circumspicio, I. B.): “circumspectio et accurata consideratio,” Cic. Ac. 2, 11, 35; “Fragm. Val. § 35: prudentiae insunt ratio, intellectus, circumspectio,” Macr. Somn. Scip. 1, 8, 7.