Daily Almanac for
Feb 11, 2012
Search: Infoplease Info search tips
Search: Biographies Bio search tips
| Share
 

Dictionary


pho•to•tube



Pronunciation: (fō'tu-tOOb", -tyOOb"), [key]
—n. Electronics.
an electron tube with a photosensitive cathode, used like a photocell. Also called photoelectric tube.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

phototropismphototype
    • Cite
    • Print
    • Bookmark

 

Related Content
A free, reliable Q&A site for homework help. Answerplease.com