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

(uncountable) A feeling of sympathy at the misfortune or suffering of someone or something.

* Bible, Proverbs xix. 17

He that hath pity upon the poor lendeth unto the Lord.

* Shakespeare

Hehas no more pity in him than a dog.

*, Folio Society, 2006, p.5:

The most usuall way to appease those minds we have offendedis, by submission to move them to commiseration and pitty .

(countable) Something regrettable.

It's a pity you're feeling unwell because there's a party on tonight.

* Laurence Sterne

It was a thousand pities .

* Addison

What pity is it / That we can die but once to serve our country!

(obsolete) piety

(Wyclif)