For other uses, see API (disambiguation). In computer programming, an Application Programming Interface (API) is a set of subroutine definitions, protocols, and tools for building application software. In general terms, it is a set of clearly defined methods of communication between various software components.
7. epidermis. The epidermis cells (from the Greek ÎµÏÎ¯Î´ÎµÏÎ¼Î¯Î´Î±, meaning over-skin) is a single-layer of cells that covers the leaves, flowers, roots and stems of plants.It forms a boundary between the plant and the external environment.tomata are holes in the plant epidermis that are surrounded by two guard cells, which control the opening and closing of the aperture. These guard cells are in turn surrounded by subsidiary cells which provide a supporting role for the guard cells. Stomata begin as stomatal meristemoids.
epidermis. n. 1. (Biology) Also called: cuticle the thin protective outer layer of the skin, composed of stratified epithelial tissue. 2. (Anatomy) the outer layer of cells of an invertebrate. 3. (Botany) the outer protective layer of cells of a plant, which may be thickened by a cuticle.air and feathers grow from the epidermis. 2. The outer layer of cells of the stems, roots, and leaves of plants. The cells of the epidermis are set close together to protect the plant from water loss, invasion by fungi, and physical damage.