Noun

(wikipedia sensitivity) (sensitivities)

The quality of being sensitive.

The ability of an organism or organ to respond to external stimuli.

* {{quote-magazine, year=2013, month=July-August, author= Fenella Saunders, magazine=(American Scientist)

, title= Tiny Lenses See the Big Picture , passage=The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity . They also have high spatial resolution, resolving incoming images in minute detail.}}

(statistics) The proportion of individuals in a population that will be correctly identified in a binary classification test.

(electronics) The degree of response of an instrument to a change in an input signal.

(photography) The degree of response of a film etc. to light of a specified wavelength.

Noun

(-)

enthusiasm; enjoyment, vigor

He sang with more gusto than talent.

* 1993 , , The Dictator’s Dream , Dark Horse Books

And the sound increases … the power grows … gusto becomes something else: rage .