Entry 1 sense Webster, 1913 Cow parsley /(kou` p?rs`l?)/ · Cow· pars·ley · IPA 01 An umbelliferous plant of the genus Chærophyllum (Chærophyllum temulum and Chærophyllum sylvestre). 1. An umbelliferous plant of the genus Chærophyllum (Chærophyllum temulum and Chærophyllum sylvestre).(Bot.)