(fī-lak'sis), Protection against infection.

What's a Phylaxis?

[ fī-lăk′sĭs ] n. Protection against infection.

What is the suffix for protein?

The suffix -in (/ɪn/) is etymologically related and overlaps in usage with -ine. Many proteins and lipids have names ending with -in: for example, the enzymes pepsin and trypsin, the hormones insulin and gastrin, and the lipids stearin (stearine) and olein.