Dictionary.com
definitions
  • synonyms

Gd

See more synonyms on Thesaurus.com
Symbol, Chemistry.
  1. gadolinium.

GD

Real Estate.
  1. garbage disposal.

gd.

  1. good.
  2. guard.

G.D.

  1. Grand Duchess.
  2. Grand Duke.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for gd

Historical Examples


British Dictionary definitions for gd

gd

the internet domain name for
  1. Grenada

Gd

the chemical symbol for
  1. gadolinium
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

gd in Medicine

Gd

  1. The symbol for the elementgadolinium

gd in Science

Gd

  1. The symbol for gadolinium.

gadolinium

[găd′l-ĭnē-əm]
Gd
  1. A silvery-white, malleable, ductile metallic element of the lanthanide series that has seven natural isotopes and 11 artificial isotopes. Two of the natural isotopes, Gd 155 and Gd 157, are the best known neutron absorbers. Gadolinium is used to improve the heat and corrosion resistance of iron, chromium, and various alloys and in medicine as a contrast medium for magnetic resonance imaging and as a radioisotope in bone mineral analysis. Atomic number 64; atomic weight 157.25; melting point 1,312°C; boiling point approximately 3,000°C; specific gravity from 7.8 to 7.896; valence 3. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.