spumescence|spjuːˈmɛsəns| [See next and -ence.] Frothiness; the state of being foamy. Also fig. 1796Kirwan Elem.Min. (ed. 2) I. 208 Before the blow⁓pipe it melts with a moderate spumescence into a white semitransparent enamel.1903Speaker 7 Feb. 489/2 His prose style always tends to spumescence.