misdefense

noun

misdefense

noun

Etymology From mis- + defense.

1

A faulty defense that allows one's opponent to take advantage

South now had seven tricks (two spades, three hearts and two clubs), and a later misdefense allowed an overtrick.2009 January 15, Phillip Alder, “Scrutinizing the Dummy to Develop the Defense”, Bridge, in New York Times:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.