Section 572.4 - Terminology(a) The term dummy, when used in this subpart A, refers to any test device described by this part. The term dummy, when used in any other subpart of this part, refers to the particular dummy described in that part.(b) Terms describing parts of the dummy, such as head, are the same as names for corresponding parts of the human body.(c) The term unimodal, when used in subparts C and I, refers to an acceleration-time curve which has only one prominent peak.38 FR 20451, Aug. 1, 1973, as amended at 42 FR 7152, Feb. 7, 1977; 44 FR 76530, Dec. 27, 1979; 56 FR 57836, Nov. 14, 1991