ir·i·dol·o·gy 
(ĭr′ĭ-dŏlə-jē, ī′rĭ-)
(ĭr′ĭ-dŏlə-jē, ī′rĭ-)n.
The study of the iris of the eye, especially as associated with disease.
ir′i·dolo·gist n.
- polyribonucleotide
- polyribosome
- polysaccharid
- polysaccharide
- polysaccharose
- polysemous
- polysemy
- polysepalous
- polysome
- polysomic
- polysorbate
- polyspermic
- polyspermy
- polystichous
- polystyrene
- polysulfide
- polysyllabic
- polysyllabically
- polysyllable
- polysynaptic
- polysyndeton
- polysynthetic
- polytechnic
- polytene
- polytenic