English Dictionary

ACTINOID

Pronunciation (US): Play  (GB): Play

 Dictionary entry overview: What does actinoid mean? 

ACTINOID (noun)
  The noun ACTINOID has 1 sense:

1. any of a series of radioactive elements with atomic numbers 89 through 103play

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


ACTINOID (adjective)
  The adjective ACTINOID has 1 sense:

1. having a radial formplay

  Familiarity information: ACTINOID used as an adjective is very rare.


 Dictionary entry details 


ACTINOID (noun)


Sense 1

Meaning:

Any of a series of radioactive elements with atomic numbers 89 through 103

Classified under:

Nouns denoting substances

Synonyms:

actinide; actinoid; actinon

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

group; grouping (any number of entities (members) considered as a unit)


ACTINOID (adjective)


Sense 1

Meaning:

Having a radial form

Context example:

starfish are actinoid--that is, they are radially symmetrical

Similar:

actinomorphic; actinomorphous (capable of division into symmetrical halves by any longitudinal plane passing through the axis)


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