Entry 1 sense Webster, 1913 Dulcinea /dŭlˌ-sĭn-ē'-ə/ · Dul·cin·e·a · IPA /ˌdʌlsɪˈniːə/ 01 n. A mistress; a sweetheart. 1. A mistress; a sweetheart. “I must ever have some Dulcinea in my head.” — Sterne.