the process in which a gastrula develops from a blastula by the inward migration of cells | the gradual beginning or coming forth |
| vegetation that has grown |
| something grown or growing |
| (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level |
| a progression from simpler to more complex forms |
| a process of becoming larger or longer or more numerous or more important |
| (pathology) an abnormal proliferation of tissue (as in a tumor) |