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The Collaborative International Dictionary
Sputation

Sputation \Spu*ta"tion\ (sp[-u]*t[=a]"sh[u^]n), n. [L. sputare to spit, v. intens. fr. spuere to spit: cf. F. sputation.] The act of spitting; expectoration.
--Harvey.

Wiktionary
sputation

n. The act of spitting; expectoration.