For the purposes of this chapter, the following words and phrases shall have the meanings respectively ascribed to them by this chapter.
   GARBAGE. All putrescible waste including animal and vegetable matter and recognizable industrial by-products, but excluding sewage and human wastes.
   LITTER. Refuse and all other waste materials, which, if thrown or deposited on any premises, vacant lot, street or sidewalk, tends to create a danger to public health and safety, or any unsightly appearance.
   REFUSE. All nonputrescible wastes.
(Prior Code, § 7-2)