|corresponding in function, but not evolved from corresponding organs, as the wings of a bee and those of a hummingbird|
|the cell produced by the union of two gametes before it undergoes cleavage or cell division|
angiogenesis an·gi·o·gen·e·sis (ān'jē-ō-jěn'ĭ-sĭs)
The development of the blood vessels.
|angiogenesis (ān'jē-ō-jěn'ĭ-sĭs) Pronunciation Key
The formation of new blood vessels, especially blood vessels that supply oxygen and nutrients to cancerous tissues.