Chapter Rosette to Rotche of R by Webster's Dictionary (1913 Edition)

Rosin oil

, an oil obtained from the resin of the pine tree, — used by painters and for lubricating machinery, etc.

Rosin
(Ros"in), v. t. To rub with rosin, as musicians rub the bow of a violin.

Or with the rosined bow torment the string.

Gay.

Rosiness
(Ros"i*ness) n. The quality of being rosy.

Rosinweed
(Ros"in*weed`) n. (Bot.) (a) The compass plant. See under Compass. (b) A name given in California to various composite plants which secrete resins or have a resinous smell.

Rosiny
(Ros"in*y) a. like rosin, or having its qualities.

Rosland
(Ros"land) n. [W. rhos a meadow, a moor + E. land.] heathy land; land full of heather; moorish or watery land. [prov. Eng.]

Rosmarine
(Ros"ma*rine`) n. [OE. See Rosemary.]

1. Dew from the sea; sea dew. [Obs.]

That purer brine
And wholesome dew called rosmarine.

B. Jonson.

2. Rosemary. [Obs.] Spenser. "Biting on anise seed and rosmarine." Bp. Hall.

Rosmarine
(Ros"ma*rine), n. [Norw. rosmar a walrus; ros a horse (akin to E. horse) + (probably) mar the sea.] A fabulous sea animal which was reported to climb by means of its teeth to the tops of rocks to feed upon the dew.

And greedly rosmarines with visages deforme.

Spenser.

Rosolic
(Ro*sol"ic) a. [Rose + carbolic.] (Chem.) Pertaining to, or designating, a complex red dyestuff (called rosolic acid) which is analogous to rosaniline and aurin. It is produced by oxidizing a mixture of phenol and cresol, as a dark red amorphous mass, C₂₀H₁₆O₃, which forms weak salts with bases, and stable ones with acids. Called also methyl aurin, and, formerly, corallin.

Ross
(Ross) ; 115), n. [Etymol. uncertain.] The rough, scaly matter on the surface of the bark of trees. [Prov. Eng. & Local, U.S.]

Ross
(Ross), v. t. To divest of the ross, or rough, scaly surface; as, to ross bark. [Local, U.S.]

Rossel
(Ros"sel) n. Light land; rosland. [Obs. or Prov. Eng.] Mortimer.

Rossel current
(Ros"sel cur`rent) [From Rossel Island, in the Louisiade Archipelago.] (Oceanography) A portion of the southern equatorial current flowing westward from the Fiji Islands to New Guinea.
[Webster 1913 Suppl.]

Rosselly
(Ros"sel*ly) a. Loose; light. [Obs.] Mortimer.

Rost
(Rost) n. See Roust. [Scot.] Jamieson.

Rostel
(Ros"tel) n. [L. rostellum, dim. of rostrum a beak: cf. F. rostelle.] same as Rostellum.

Rostellar
(Ros*tel"lar) a. Pertaining to a rostellum.

Rostellate
(Ros"tel*late) a. [NL. rostellatus.] Having a rostellum, or small beak; terminating in a beak.