Db

The symbol for dubnium.

DB

abbr.

1. daybook

2. Football defensive back

dB

abbr.

decibel

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

dB

db

symbol for

(General Physics) decibel or decibels

DB

abbreviation for

(Social Welfare) defined-benefit

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

dB

or db,

decibel.

dB

Abbreviation of decibel

Db

The symbol for dubnium.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	Db - a transuranic element atomic number 105, dubnium, element 105, hahnium chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
	2.	dB - a logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity decibel sound unit - any acoustic unit of measurement

Translations

dB

ABBR =decibel → dB

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

dB

abbr of decibel → dB

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007