Tumor types: There has been a long-lasting debate about classification of canine mammary tumors. According to the World Health Organization (WHO), canine mammary tumors are histologically classified into four categories: malignant tumors, benign tumors, unclassified tumors, and mammary hyperplasias/dysplasias.
Gandy dancer is a slang term used for early railroad workers who laid and maintained railroad tracks in the years before the work was done by machines.
Wiktionary(0.00 / 0 votes)Rate this definition: contra dance(Noun) A type of folk dance style in which couples dance in two facing lines of indefinite length. Freebase(0.00 / 0 votes)Rate this definition: Contra dance refers to several partnered folk dance styles in which couples dance in two facing lines or a square.