APPENDIX C â CATEX Long Form Checklist to Support an Environmental Finding of Categorical Exclusion (Catex) This checklist documents consideration of environmental laws, regulations, and executive orders as they apply to Federal actions.
Full Definition of DERIVATION. 1. a (1) : the formation of a word from another word or base (as by the addition of a usually noninflectional affix) (2) : an act of ascertaining or stating the derivation of a word (3) : etymology 1 b: the relation of a word to its base.2. a: source, origin b: descent, origination.3. : something derived: derivative.efinition of DERIVATION for Kids. 1. : the formation of a word from an earlier word or root. 2. : etymology. 3. 4. : an act or process by which one thing is formed from another.
Definition of DESCENT. 1. b: transmission or devolution of an estate by inheritance usually in the descending line c: the fact or process of originating from an ancestral stock d: the shaping or development in nature and character by transmission from a source: derivation.2. : the act or process of descending. 3.edical Definition of DESCENT. 1. 2. a: derivation from an ancestor b: the fact or process of originating by generation from an ancestral stock (as a species or genus).