respondent
noun
[ rɪˈspɒnd(ə)nt ]
• a party against whom a petition is filed, especially one in an appeal or a divorce case.
• a person who replies to something, especially one supplying information for a questionnaire or responding to an advertisement.
• "most respondents to our questionnaire considered their practices to be in accordance with current medical guidelines"
respondent
adjective
• in the position of a party defending against a petition.
• "the respondent defendant"
• replying to something.
• "the respondent firms in the survey"
• involving or denoting a response, especially a conditioned reflex, to a specific stimulus.
Origin:
early 16th century (in respondent (sense 2 of the noun)): from Latin respondent- ‘answering, offering in return’, from the verb respondere (see respond).