ef·fu·sive /ɪˈfjuːsɪv/ a. | n.I a. 1. (语言、 感情等)过分热情的;奔放的 They were effusive in their thanks for their host's hospitality. 他们对主人的殷勤款待感谢万分。 She found his effusive flattery unbearable. 她感到他那种过分的奉承难以忍受。 2. 【地】喷发的,流出的,喷出的,溢出的 effusive rocks 喷发岩 II n. 【地】喷发岩