18-letter words containing pola
- bipolar transistor — (electronics) A transistor made from a sandwich of n- and p-type semiconductor material: either npn or pnp. The middle section is known as the "base" and the other two as the "collector" and "emitter". When used as an amplifying element, the base to emitter junction is in a "forward-biased" (conducting) condition, and the base to collector junction is "reverse-biased" or non-conducting. Small changes in the base to emitter current (the input signal) cause either holes (for pnp devices) or free electrons (for npn) to enter the base from the emitter. The attracting voltage of the collector causes the majority of these charges to cross into and be collected by the collector, resulting in amplification. Contrast field effect transistor.
- north polar region — the region of land and water surrounding the North Pole.
- over-extrapolation — to infer (an unknown) from something that is known; conjecture.
- plane polarization — a type of polarization in which the electric vector of waves of light or other electromagnetic radiation is restricted to vibration in a single plane
- spectropolarimeter — an instrument for determining the extent to which plane-polarized light of various wavelengths is rotated by certain solutions, consisting of a combination of a spectroscope and a polarimeter.
- spectropolariscope — an instrument combining the functions of a spectroscope with those of a polariscope.
On this page, we collect all 18-letter words with POLA. It’s easy to find right word with a certain length. It is the easiest way to find 18-letter word that contains POLA to use in Scrabble or Crossword puzzles.