Definition of puisne

• a. - Later in age, time, etc.; subsequent.
• a. - Puny; petty; unskilled.
• a. - Younger or inferior in rank; junior; associate; as, a chief justice and three puisne justices of the Court of Common Pleas; the puisne barons of the Court of Exchequer.
• n. - One who is younger, or of inferior rank; a junior; esp., a judge of inferior rank.