Maiden  n. 1 a archaic or poet. Girl; young unmarried woman. B (attrib.) Unmarried (maiden aunt). 2  = *maiden over. 3 (attrib.) (of a female animal) unmated. 4 (often attrib.) A horse that has never won a race. B race open only to such horses. 5 (attrib.) First (maiden speech; maiden voyage).  maidenhood n. Maidenly adj.  [old english]