zero deflection
The adjustment of a sight, exactly parallel to the axis of the bore of the gun to…The adjustment of a sight, exactly parallel to the axis of the bore of the gun to which it is attached.
Meaning
1 senses(uncountable)The adjustment of a sight, exactly parallel to the axis of the bore of the gun to which it is attached.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable