1. Reference mark is set automatically by light beam from the photocell.

2. Dagger: Dagger - shaped symbol used asf footnote reference mark . Usually follows the asterisk in order of use.

3. Asterisk definition, a small starlike symbol (*), used in writing and printing as a reference mark or to indicate omission, doubtful matter, etc

4. A small reference mark may be made at base of arm post with a pencil so you do not lose the overhang setting.

5. 16 Take this red rock as a reference mark. The position of red rock layer on the left sides of the inclined plane is lower than that on the right sides of the inclined plane.

6. Definition of Asterisk (Entry 1 of 2) 1 : the character * used in printing or writing as a reference mark, as an indication of the omission of letters or words, to denote a hypothetical or unattested linguistic form, or for various arbitrary meanings