GEMSTONE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does gemstone mean? 

• GEMSTONE (noun)
  The noun GEMSTONE has 1 sense:

1. a crystalline rock that can be cut and polished for jewelry

  Familiarity information: GEMSTONE used as a noun is very rare.

 Dictionary entry details 

• GEMSTONE (noun)

Sense 1

Meaning:

A crystalline rock that can be cut and polished for jewelry

Classified under:

Nouns denoting substances

Synonyms:

gem; gemstone; stone

Context example:

she had jewels made of all the rarest stones

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

crystal (a solid formed by the solidification of a chemical and having a highly regular atomic structure)

Hyponyms (each of the following is a kind of "gemstone"):

cabochon (a highly polished gem that is cut convexly but without facets)

opaque gem (a gemstone that is opaque)

transparent gem (a gemstone having the property of transmitting light without serious diffusion)

Holonyms ("gemstone" is a part of...):

jewellery; jewelry (an adornment (as a bracelet or ring or necklace) made of precious metals and set with gems (or imitation gems))

 Context examples 

Previous detections of clouds by Hubble at the boundary between day and night, where temperatures mercifully fall, have shown that titanium oxide (popular as a sunscreen) and aluminum oxide (the basis for ruby, the gemstone) could also be molecularly reborn on the ultrahot Jupiters' nightsides.

(Water Is Destroyed, Then Reborn in Ultrahot Jupiters, NASA/JPL)