A popliteal cyst, also known as a Baker's cyst, is a fluid-filled swelling that causes a lump at the back of the knee.
the smallest category is species but from largest to smallest it will be: kingdom Phylum class order family genus and species and you can come up with another word for it to hâ¦elp you with it. so yeh there you go.
genus (plural genera) ( 1 taxonomy) a rank in the classification of organisms, below family and above species; a taxon at that rank All magnolias belong to the genus Magnolia. 2  A group with common attributes. ( 3 topology) A number measuring some aspect of the complexity of any of various manifolds or graphs.