zigzag rule

zigzag rule

[′zig‚zag ‚rül]

(engineering)

A folding ruler having pivoted sections that lock when the ruler is opened.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

zigzag rule

A folding rule whose sections are pivoted; stiff when fully opened.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.