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.
1 Noddy A small two-wheeled one-horse vehicle. 2  Noddy An inverted pendulum consisting of a short vertical flat spring which supports a rod having a bob at the top; -- used for detecting and measuring slight horizontal vibrations of a body to which it is attached. 3  Noddy An old game at cards.