Lewis & Short

compactĭlis, e, adj. [compactus, compingo].

  1. I. Pressed or joined together, compact: trabes, fitted one to another, Vitr. 4, 7: postes, id. 10, 14, 2: operimentum (of nuts), Plin. 15, 22, 24, § 88.
  2. II. Of form, thick-set, compact; of lions, Plin. 8, 16, 18, § 46; of bees, id. 11, 18, 19, § 59.