[noncount] 1 : the process by which young animals, birds, etc., are produced by their parents — often used before another noun ▪ the breeding season 2 : the activity of keeping and caring for animals or plants in order to produce more animals or plants of a particular kind
▪ She became involved in the breeding of sled dogs. ▪ horse/dog/plant breeding — often used before another noun ▪ a breeding program 3 somewhat old-fashioned : the way a person was taught in childhood to behave
▪ His politeness shows good breeding. : good manners that come from being raised correctly ▪ a person who lacks breeding