ˈkō(ˌ)deks noun
( plural co·di·ces ˈkōdəˌsēz, -äd-)
Etymology: Latin — more at code
1. obsolete : code 1, 2
2. : a usually ancient book or unbound sheets in manuscript especially of Scripture, Greek and Latin classics, or ancient mythological or historical annals — distinguished from scroll
3. : a collection of drug formulas
a codex similar to the British Pharmaceutical Codex