What's the difference between reostat and rheostat?

Reostat

Definition:

Example Sentences:

Definition:

(n.) A contrivance for adjusting or regulating the strength of electrical currents, operating usually by the intercalation of resistance which can be varied at will.

Example Sentences:

(1) Defects in this control system are best conceptualized in cybernetic terms rather than in terms of the current rheostat models.
(2) Chicks, 8 days of age, were housed in a wind tunnel at temperatures from 12 to 28 C in increments of 4 C. The tunnel was equipped with a microswitch, an infrared bulb located above the switch, and a small electric fan controlled by a rheostat.
(3) We propose a "rheostat" mechanism, which suggests that bone perfusion may set limits for bone growth and remodeling.
(4) Since the orifice is in series with an approximately 10 K ohm resistance generated by a gel-filled capillary and a displacement rheostat, it floats electrically, at virtual ground.