4. Hypothalamus â (âhypoâ = below), the most ventral part of the. diencephalon; it is the most signiï¬cant component of the diencephalon. from a clinical standpoint because lesions result in abnormalities in. endocrine, limbic and/or autonomic function.
The plural of leaf is leaves. The plural of leaf is leaves. 1  In most plant species, leaves are broad and flat.  The longest leaves are those of the Raffia palm. They can grow to be up to 25 m long and 3 m wide.
Definition of LEAF for Kids. 1. : one of the usually flat green parts that grow from a plant stem and that functions mainly in making food by photosynthesis. 2. 3. : a single sheet of a book containing a page on each side.4.: a part that can be added to or removed from a table top. â leafÂ·less \ËlÄf-lÉs\ adjective. one of the flat and typically green parts of a plant that grow from a stem or twig. : a sheet of paper in a book. : a part that can be added to or removed from a table to change the size of its top surface.