Lewis & Short

ā̆prīcus, a, um, adj. [qs. contr. from apericus, from aperio, Doed. Syn. III. p. 170; for the long i, cf. antīcus, postīcus; acc. t oothers, kindr. with old Germ. ābar; mid. Germ. aeber, = dry, warm], orig., lying open, uncovered, or, acc. to the second etymol., warm: Qui tulit aprico frigida castra Lare, under the open heaven, Prop. 5, 10, 18, where Müller reads e parvo.
Hence, with esp. ref. to the warmth of the sun, exposed to the sun or to the warmth of the sun, open to the sun, sunny.

  1. I.
    1. A. Of places (class. in prose and poetry): loci … opaci an aprici, Cic. Part. Or. 10 fin.: hortus, id. Fam. 16, 18 (perh. not elsewhere in Cic.): colles, Liv. 21, 37: campus, Hor. C. 1, 8, 3; id. A. P. 162: rura, id. C. 3, 18, 2: agger, id. S. 1, 8, 15 et saep.
    2. B. Subst.: ā̆prīcum, i, n., a sunny spot, place.
      1. 1. Lit.: buxus amat aprica, Plin. 16, 16, 28, § 71: aprica Alpium, id. 21, 7, 20, § 43.
        And
      2. 2. * Trop.: in apricum proferre, to bring to light, Hor. Ep. 1, 6, 24 (= in apertum, Cruq.).
    3. C. Poet., of other objects exposed to the sun, delighting or growing in the sunshine: arbor, Ov. M. 4, 331: mergi, basking in the sun, Verg. A. 5, 128: flores, Hor. C. 1, 26, 7: senes, Pers. 5, 179 al.
  2. II. Transf.
    1. A. Clear, pure (only in Col.): caeli status, Col. 11, 3, 27: apricissimus dies, id. 9, 14, 13.
    2. B. Coming from the sunny quarter, i.e. from the south: flatus, the south wind, Col. 1, 5, 8
      Comp., Col. 11, 3, 24.
      Adv. not used.