a logarithm having e as a base. Symbol: ln.
a logarithm to the base e. Usually written loge or ln Also called Napierian logarithm Compare e (sense 1), common logarithm
A logarithm using base e. Natural logarithms are common in mathematics, especially in cases involving complex numbers. They are also called Napierian logarithms, after their inventor, English mathematician John Napier (1550-1617). See more at e. Compare common logarithm.
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.
[nach-er-uh l, nach-ruh l] /ˈnætʃ ər əl, ˈnætʃ rəl/ adjective 1. existing in or formed by nature (opposed to ): a natural bridge. 2. based on the state of things in nature; constituted by nature: Growth is a natural process. 3. of or relating to nature or the universe: natural beauty. 4. of, relating to, […]