The Collaborative International Dictionary
Spumous
Spumous \Spum"ous\ (sp[=u]m"[u^]s), Spumy \Spum"y\ (sp[=u]m"[y^]), a. [L. spumosus, fr. spuma foam: cf. F. spumeux.] Consisting of, containing, or covered with, froth, scum, or foam; frothy; foamy.
The spumous and florid state of the blood.
--Arbuthnot.
The spumy waves proclaim the watery war.
--Dryden.
Wiktionary
spumous
a. frothy or foamy; spumy