ce·rous 
(sîrəs)
(sîrəs)adj.
Relating to or containing cerium, especially with valence 3.
[CER(IUM) + -OUS.]
- polysorbate
- polyspermic
- polyspermy
- polystichous
- polystyrene
- polysulfide
- polysyllabic
- polysyllabically
- polysyllable
- polysynaptic
- polysyndeton
- polysynthetic
- polytechnic
- polytene
- polytenic
- polyteny
- polytetrafluoroethylene
- polytheism
- polytheist
- polytheistic
- polythene
- polytocous
- polytomy
- polytonal
- polytonality