Defn: An instrument which periodically or otherwise interrupts an electric current. Wheatstone.

RHEOTROPE
Rhe"o*trope, n. Etym: [Gr. (Elec.)

Defn: An instrument for reversing the direction of an electric current. [Written also reotrope.]

RHESUS
Rhe"sus, n. Etym: [L. Rhesus, a proper name, Gr. (Zoöl.)

Defn: A monkey; the bhunder.

RHETIAN
Rhe"ti*an, a. Etym: [L. Rhaetius, Raetius: cf. F. rhétien.]

Defn: Pertaining to the ancient Rhæti, or Rhætians, or to Rhætia, their country; as, the Rhetian Alps, now the country of Tyrol and the Grisons.

RHETIC
Rhe"tic, a. (Min.)

Defn: Same as Rhætic.

RHETIZITE
Rhe"ti*zite, n. (Min.)