the usually yellowish-white liquid matter produced in certain infections, consisting of bacteria, white corpuscles, serum, etc.
Origin of pusClassical Latin ; from Indo-European base an unverified form p?-, an unverified form pu-, to rot, stink (prob. origin, originally echoic of cry of disgust) from source foul, Classical Greek pyon, pus, Classical Latin putridus, putrid
A generally viscous, yellowish-white fluid formed in infected tissue, consisting of white blood cells, cellular debris, and necrotic tissue.
Origin of pusLatin p&umacron;s; see p&ubremac;- in Indo-European roots.
- Permanent Under Secretary (UK)