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DB

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Radio and Television.
  1. delayed broadcast.

dB

or db

Physics.
  1. decibel; decibels.

Db

Symbol, Chemistry, Physics.
  1. dubnium.

d.b.

  1. daybook.

D.B.

  1. Bachelor of Divinity.
  2. Domesday Book.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for db

dB

db

symbol for
  1. decibel or decibels

DB

abbreviation for
  1. defined-benefit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

db in Medicine

dB

abbr.
  1. decibel
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

db in Science

dB

  1. Abbreviation of decibel

Db

  1. The symbol for dubnium.

dubnium

[dōōbnē-əm]
Db
  1. A synthetic, radioactive element that is produced from californium, americium, or berkelium. Its most long-lived isotopes have mass numbers of 258, 261, 262, and 263 with half-lives of 4.2, 1.8. 34, and 30 seconds, respectively. Atomic number 105. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.