A.anything that surrounds or encircles the head, etc., for defence or ornament:
I. brim of the helmet, “βάλ᾽ ἔγχεϊ ὀξυόεντι αὐχέν᾽ ὑπὸ στεφάνης εὐχάλκου” Il.7.12; “ς. χαλκοβάρεια” 11.96; the helmet itself, “ἐπὶ στεφάνην κεφαλῆφιν ἀείρας θήκατο χαλκείην” 10.30, cf. Plu.2.726f.
2. as a woman's head-dress, diadem, coronal, Il.18.597, h.Hom.6.7, Hes.Th.578, Ar.Ec.1034; found on statues, IG22.1126.31 (Amphict. Delph., iv B.C.); distd. fr. στέφανος, in list of offerings, ib.12.264.62, al.; of men, δωρήσασθαι χρυσέῃ στεφάνῃ τὸν κυβερνήτην crown of honour, Hdt.8.118 (v.l. for χρυσέῳ στεφάνῳ); as a piece of outlandish luxury, Ar.Eq.968: metaph., of a city, ἀπὸ στεφάναν κέκαρσαι πύργων thou hast been shorn of thy coronal of towers, E.Hec.910 (lyr.), cf. Tr.784 (anap.), AP9.97 (Alph.).
b. ς. τριχῶν the outer fringe of hair round bald or shaven crowns, as represented on comic masks, Poll.4.144, cf. 2.40.
3. Medic., sutura coronalis, Aret.CD1.2, Poll.2.39.
b. in the eye, rim of the cornea where it joins the sclerotic, Gal.18(2).47, UP10.2, Ruf.Onom.26, Hsch.; rim of the eyelids, Ruf.Onom.20, Gal.14.767; eyeball, Hp.Vid.Ac.4.
c. a circular muscle, such as the sphincter ani, Poll.2.211; = corona glandis, Antyll. ap. Orib.50.3.6, Ruf.Sat.Gon.5.
d. of animals, upper rim of the hoof, coronet, Opp.C.1.232.
e. in pl., stripes of the wild ass, ib.3.188.
5. Geom., plane figure contained between two concentric circles, Hero *Deff.37.
b. external periphery of a vault, Id.*Mens. 16.
6. pl., rings composing the universe, Parm. ap. Placit.2.7.1.
II. brim or edge of anything, brow of a hill, edge of a cliff, Il. 13.138, Inscr.Prien.361 (iv B.C.), 42.55 (ii/i B.C.), SIG685.60 (Crete, ii B.C.), Plb.1.56.4, Conon 35; “τοῦ θεάτρου” Plb.7.16.6; “Τείθρωνος” IG92(1).51.2 (Thermum, iii B.C.): generally, edge, border, moulding, Thphr.HP5.6.2, LXX Ex.25.23, al.; “ταλάροιο” Mosch.2.55; “τύμβου” A.R.2.918; parapet, LXX De.22.8: pl., = αἱ τῶν βωμῶν ὠλέναι, Hsch.