Dictionary.net

• Resembling pus; pus-like.

1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland

• Resembling pus (said of a fluid such as is found in the cold abscess, which has the appearance but lacks the pathological character and pathogenic property of pus). [Lat.]

1916 - Appleton's medical dictionary
By Smith Ely Jelliffe