D defs.my
Entry 2 senses Webster, 1913

Breeder

/brēd'-ẽr/ · Breed·er · IPA /ˈbɹiːdɚ/
01 n. One who, or that which, breeds, produces, brings up, etc.
  1. 1.
    One who, or that which, breeds, produces, brings up, etc.
    “She was a great breeder.” — Dr. A. Carlyle.
    “Italy and Rome have been the best breeders of worthy men.” — Ascham.
  2. 2.
    A cause.