Definition of: sensitive

(sen′sə·tiv) adjective
1. Easily affected by outside operations or influences; excitable or impressible; touchy; easily offended.
2. Chem. & Phot. Reacting readily to the proper agents or forces: paper sensitive to light.
3. Pertaining to or depending on the senses or sensation: sensitive motions.
4. Closing or moving when touched or irritated, as certain plants.
5. Liable to fluctuation.
6. Obs. Wise; sensible.
7. Capable of indicating minute changes or differences; delicate. See synonyms under FINE, MOBILE. [<OF sensitif <Med. L sensitivus <L sensus. See SENSIBLE.]
—sen′si·tive·ly adverb
—sen′si·tive·ness noun