Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† bālaena (bālēna), ae, f., = φάλαινα, Engl. whale (cf. Fest. p. 25, and the letter B.), a whale, Plaut. Rud. 2, 6, 61; Plin. 9, 8, 7, § 21; 9, 13, 15, § 41; 11, 40, 95, § 235; Ov. M. 2, 9; Juv. 10, 14; Aus. Mos. 144.