a deposit of sand or mud built up along, and sloping away from, either side of the flood plain of a river or stream.
noun, Mathematics. 1. a logarithm having e as a base. Symbol: ln. noun 1. a logarithm to the base e. Usually written loge or ln Also called Napierian logarithm Compare e (sense 1), common logarithm natural logarithm A logarithm using base e. Natural logarithms are common in mathematics, especially in cases involving complex numbers. They […]
adjective appearing to be in a natural state, esp. when cosmetically enhanced Examples The foundation she used was quite natural-looking.
[nach-er-uh-lee, -uh l-lee, nach-ruh-lee, -ruh l-lee] /ˈnætʃ ər ə li, -əl li, ˈnætʃ rə li, -rəl li/ adverb 1. in a or normal manner. 2. by ; innately or inherently. 3. of course; as would be expected; needless to say. /ˈnætʃrəlɪ; -tʃərə-/ adverb 1. in a natural or normal way 2. through nature; inherently; instinctively […]
- Natural mutation
natural mutation n. See spontaneous mutation.