Observable
Part of speech: adjective
Definition: Able to be observed. Deserving to be observed.
Part of speech: noun
Definition: Any physical property that can be observed and measured directly and not derived from other properties
Example sentence: In the perception of the incongruous stimuli, the recognition process is temporarily thwarted and exhibits characteristics which are generally not observable in the recognition of more conventional stimuli.
Discernible
Part of speech: adjective
Definition: Possible to discern.