- The definition of a cul de sac is a dead end street.
An example of a cul de sac is a street that ends in a circle instead of going into another street.
cul-de-sac definition by Webster's New World
cul-de-sac definition by American Heritage Dictionary
noun pl. culs-de-sac culs-de-sac or cul-de-sacs
- a. A dead-end street.b. An impasse: “This was the cul-de-sac the year kept driving me toward: men and women would always be at odds” (Philip Weiss).
- Anatomy A saclike cavity or tube open only at one end.
Origin: French : cul, bottom (from Old French, from Latin cūlus; see culet) + de, of (from Old French, from Latin dē; see de-) + sac, sack (from Old French, from Latin saccus; see sack1).
cul-de-sac - Medical Definition
noun pl. culs-de-sac or cul-de-sacs