from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A continuously variable electrical resistor used to regulate current.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider.
from the GNU version of the Collaborative International Dictionary of English
- 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.
from The Century Dictionary and Cyclopedia
- n. In electromagnetism, an instrument for regulating lating or adjusting a circuit so that any required degree of resistance may be maintained; a resistance-coil. See resistance, 3.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. resistor for regulating current
The rheostat, which is in the right part of the figure, has five sliding contacts, each of which can be connected with ten different points.
Fan switching is relatively easy however RPM control is not, for this you needed called a rheostat baybus.
More recently a new "rheostat" model argues that the responsiveness of each NK cell is tuned by the input of inhibitory receptors
Dr. Wang, with CUMC's Dr. Shigeo Takaishi, and their colleagues, argue that gastrin may serve as a "rheostat" for the stomach.
'rheostat' when the regulatory mechanism operates in a graduated, or quantitative, manner.
You just dial this thing up to speed like you're turning up the ceiling-fan rheostat.
The rest of the lights on the instrument panel are working fine, so it isn't just that the rheostat is turned down.
Since you can't find food in the dark -- in fact, it's more likely you'd become food -- melatonin acts as a rheostat that lowers body temperature during NREM (Non-Rapid Eye Movement) sleep in order to slow metabolic processes and stave off hunger.
The second packet stirred almost no reaction in me, and then I started to feel flat and numb -- a sign my emotional rheostat was dimming off to protect me from the pain of what it would mean if I didn't connect with the last donor profile laying on the table.
He found he could vary its buoyancy by manipulating the rheostat and thus regulate the speed of ascent.