The quality or state of being responsive. / The ability of a machine to adjust to external influences.

Misspelling of responsible.

A measure of responsiveness / (physics) A measure of the gain of a system

plural of responsion

(rare) An answer or reply; a response.

Misspelling of responsibility.

plural of responsal

(obsolete) One who is answerable or responsible. / (obsolete) A liturgical response. / A proctor for a monastery.

(obsolete) answerable; responsible

plural of responsivity