con·tes·tant 
(kən-tĕstənt, kŏntĕs′tənt)
(kən-tĕstənt, kŏntĕs′tənt)n.
1. One taking part in a contest; a competitor.
2. One that contests or disputes something, such as an election or a will.
- immunochemistry
- immunocompetence
- immunocompetent
- immunocompromised
- immunodeficiency
- immunodeficient
- immunodepressant
- immunodepression
- immunodepressive
- immunodiagnosis
- immunodiagnostic
- immunoelectrophoresis
- immunofluorescence
- immunofluorescent
- immunogenetic
- immunogeneticist
- immunogenetics
- immunogenic
- immunogenicity
- immunoglobulin
- immunoglobulin A
- immunoglobulin D
- immunoglobulin E
- immunoglobulin G
- immunoglobulin M