[ GLOSSARY DEFINITION ] General millisecond One-thousandth of a second. Also known as: ms Full Definition & Technical Explanation millisecond — One-thousandth of a second.This general term is part of the CompareTech technical dictionary and helps you read specifications, comparisons, and benchmark data across its device database.See also: ounce pound. Related Technical Terms ounce A unit of mass equal to 28.35g. General pound A unit of mass equal to 453.6g. General ← All Glossary Terms How We Score → ← Previous Term Next Term →