n. & v.
n. 1 a discourse giving information about a subject to a class or other audience. 2 a long serious speech esp. as a scolding or reprimand.
v. 1 intr. (often foll. by on) deliver a lecture or lectures. 2 tr. talk seriously or reprovingly to (a person). 3 tr. instruct or entertain (a class or other audience) by a lecture.
[ ME f. OF lecture or med.L lectura f. L (as LECTOR) ]