field spaniel: large usually black hunting and retrieving spaniel with a dense flat or slightly wavy coat; cross between cocker and Sussex spaniel
mammal: any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
smear: a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope