The Collaborative International Dictionary
Mattery
Mattery \Mat"ter*y\, a.
Generating or containing pus; purulent.
Full of substance or matter; important.
--B. Jonson.
Wiktionary
mattery
a. 1 pussy, purulent (containing or secreting pus) 2 (context obsolete English) Full of substance or matter; important.
Usage examples of "mattery".
Cough, when the expectoration is loose, mattery and sometimes streaked with blood.
Chronic coughs, with thick, profuse, yellowish-green mattery expectoration.