Donor Definition
 dōnər 
  donors
  
    noun
  
 
    donors
  
A person who donates; giver.
 Webster's New World 
One that contributes something, such as money, to a cause or fund.
 American Heritage 
One from whom blood for transfusion, tissue for grafting, etc. is taken.
 Webster's New World 
An atom that contributes a pair of electrons to another atom to form a covalent bond with it.
 Webster's New World 
An element introduced into a semiconductor with a negative valence greater than that of the pure semiconductor.
 American Heritage 
Synonyms: 
 Antonyms: 
 
    adjective
  
 Used for transfusion, implantation, or transplant.
 A donor organ.
 American Heritage Medicine 
Other Word Forms of Donor
Noun
Singular:
 donorPlural:
 donorsOrigin of Donor
-  
From Middle English donoure, donour; from Anglo-Norman donour, from Old French doneur (See French donneur).
From Wiktionary
 -  
Middle English from Anglo-Norman donour from Latin dōnātor from dōnāre to give donation
From American Heritage Dictionary of the English Language, 5th Edition
 
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