Defn: To redden. [R.] "Waters rubifying." Chaucer.
RUBIGINOSE; RUBIGINOUS Ru*big"i*nose`, Ru*big"i*nous, a. Etym: [L. rubiginosus, fr. rubigo, robigo, rust: cf. F. rubigineux.] (Bot.)
Defn: Having the appearance or color of iron rust; rusty-looking.
RUBIGO Ru*bi"go, n. Etym: [L. rubigo, robigo, rust of metals, rust, blight.] (bot.)
Defn: same as Rust, n., 2.
RUBIN
Ru"bin, n. Etym: [Cf. LL. rubinus, It. rubino. See Ruby.]
Defn: A ruby. [Obs.] Spenser.
RUBIOUS
Ru"bi*ous, a. Etym: [L. rubeus, fr. rubere to be red. See Rouge.]
Defn: Red; ruddy. [Obs.] Shak.
RUBIRETIN
Ru`bi*re"tin, n. Etym: [Rubian + Gr. (Chem.)