Definition of "varactor" [varactor]

• A semiconductor device in which the capacitance is sensitive to the applied voltage at the boundary of the semiconductor material and an insulator. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The MAX15032 is suitable for applications such as avalanche-photodiode, PIN-diode and varactor-diode biasing."
• "Description: 2-watt monoband superhet CW rig with varactor diode VFO"