Browse By Letter

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

Engineering Dictionary

Index Plate

A metal disk or plate punched with many holes arranged in a series of rings. One outside the other each ring containing a different number of holes.