A class of trees that have broad, flat leaves of many different shapes; most are deciduous; also called hardwood because most broad-leaved trees have harder wood than do conifers. Examples include oak, hickory, maple and ash. A narrow zone or strip of land, trees or vegetation bordering an area. Common examples include visual buffers, which screen the view along roads, and streamside buffers, which are used to protect water quality. Buffers may also be used to prevent the spread of forest pests.
Medical Definition of id. : the one of the three divisions of the psyche in psychoanalytic theory that is completely unconscious and is the source of psychic energy derived from instinctual needs and drivesâcompare ego, superego.
Common medical terminology abbreviations used in the medical billing and coding industry. Medical Terminology: Abbreviations 0-A Medical abbreviations that begin with 0-A are listed here. Remember that capitalization and punctuation can alter meaning with these abbreviations - ab may not necessarily be synonomous to Ab or AB for that matter.