# Definition of *monotonic* in English:

## monotonic

### Pronunciation /ˌmänəˈtänik/ /ˌmɑnəˈtɑnɪk/

### adjective

1Mathematics

(of a function or quantity) varying in such a way that it either never decreases or never increases.

*‘The S-N curve for a pure metal will be a monotonic function with N increasing as stress decreases.’*

*‘The number above each segment gives the rank of the absolute value of the monotonic increase or decrease.’**‘The logarithm is only one of many nonlinear but monotonic functions that can be applied to measurements prior to analysis.’**‘What leads us astray is the assumption that interval calculations can be based on end points alone, which is true only for monotonic functions.’**‘In contrast to an undiluted probe surface, the hybridization signals exhibited a tendency of monotonic decrease with increasing ionic strength.’*

2Speaking or uttered with an unchanging pitch or tone.

*‘her dour, monotonic husband’*