Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† 1. strongylē, ēs, f., = στρογγύλη, a kind of alum, Plin. 35, 15, 52, § 187.
2. Strongylē, ēs, f., = Στρογγύλη, one of the Lipari islands, now Stromboli, Avien. Or. Mar. 453; Mel. 2, 7; Plin. 3, 9, 14, § 93; cf. Sil. 14, 259.