'Indorser' definitions:

Definition of 'indorser'

From: WordNet
noun
Someone who expresses strong approval [syn: subscriber, endorser, indorser, ratifier]
noun
A person who transfers his ownership interest in something by signing a check or negotiable security [syn: endorser, indorser]

Definition of 'Indorser'

From: GCIDE
  • Indorser \In*dors"er\, Indorsor \In*dors"or\, n. The person who indorses. [Written also endorser.] [1913 Webster]