veterinary surgeon vs veterinarian

veterinary surgeon and veterinarian both are nouns.

Word	Noun	Adjective	Verb	Adverb
veterinary surgeon	Yes	No	No	No
veterinarian	Yes	No	No	No

As nouns, veterinary surgeon and veterinarian are synonyms defined as:

veterinary surgeon and veterinarian: a doctor who practices veterinary medicine

Other synonyms of veterinary surgeon include vet, veterinary.

veterinary surgeon (noun)	veterinarian (noun)
a doctor who practices veterinary medicine	a doctor who practices veterinary medicine