Defn: Having the nerves spring from the midrib.
COSTARD Cos"tard (ks"trd), n. Etym: [Prob. fr. OF. coste rib, side, F. côte, and meaning orig., a ribbed apple, from the ribs or angles on its sides. See Coast.]
1. An apple, large and round like the head. Some [apples] consist more of air than water . . . ; others more of water than wind, as your costards and pomewaters. Muffett.
2. The head; — used contemptuously. Try whether your costard or my bat be the harder. Shak.
COSTARDMONGER
Cos"tard*mon`ger (-mn`gr), n.
Defn: A costermonger.
COSTATE; COSTATED Cos"tate (ks"tt), Cos"ta*ted (-t-td), a. Etym: [L. costatus, fr. costa rib.]
Defn: Having ribs, or the appearance of ribs; (Bot.) having one or more longitudinal ribs.
COSTEAN
Cos"tean` (ks"tn`), v. i. Etym: [Cornish cothas dropped + stean tin.]
Defn: To search after lodes. See Costeaning.