questionnaire

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A form containing a set of questions, especially one addressed to a statistically significant number of subjects as a way of gathering information for a survey.

from The Century Dictionary.

• noun Same as questionary, 2.

from the GNU version of the Collaborative International Dictionary of English.

• noun same as questionary.
• noun A list of questions, usually on a printed form, to be answered by an individual. The forms often have blank spaces in which the answers can be written. Sets of such forms are distributed to groups and the answers used for various purposes, such as to obtain statistical information for social science, political, or marketing research, or to obtain information about a patient for the use of medical practitioners.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A form containing a list of questions; a means of gathering information for a survey
• verb to survey using questionnaires

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a form containing a set of questions; submitted to people to gain statistical information