Collagen :: Collagen (n.) The chemical basis of ordinary connective tissue, as of tendons or sinews and of bone. On being boiled in water it becomes gelatin or glue..
Collagenous :: Collagenous (a.) Containing or resembling collagen.
Lagena :: Lagena (n.) The terminal part of the cochlea in birds and most reptiles; an appendage of the sacculus, corresponding to the cochlea, in fishes and amphibians..