GD

Pronunciation (US):

(GB):

 Dictionary entry overview: What does Gd mean? 

• GD (noun)
  The noun GD has 2 senses:

1. a nerve agent easily absorbed into the body; a lethal cholinesterase inhibitor that is highly toxic when inhaled

2. a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group

  Familiarity information: GD used as a noun is rare.

 Dictionary entry details 

• GD (noun)

Sense 1

Meaning:

A nerve agent easily absorbed into the body; a lethal cholinesterase inhibitor that is highly toxic when inhaled

Classified under:

Nouns denoting substances

Synonyms:

GD; soman

Hypernyms ("GD" is a kind of...):

organophosphate nerve agent (any of a series of nerve agents containing organophosphate compounds first synthesized by German chemists in 1936; in World War II the Germans tested them in concentration camps but not on the battlefield; Iraq is alleged to have used them against Iran and against the Kurds)

Sense 2

Meaning:

A ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group

Classified under:

Nouns denoting substances

Synonyms:

atomic number 64; gadolinium; Gd

Hypernyms ("Gd" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Holonyms ("Gd" is a substance of...):

gadolinite; ytterbite (a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium)

samarskite (a complex black mineral occurring in pegmatites)

 Context examples 

An element with atomic symbol Gd, atomic number 64, and atomic weight 157.25.

(Gadolinium, NCI Thesaurus)