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vitamin A
vitamin A2
vitamin B
vitamin B complex
vitamin B1
vitamin B12
vitamin B2
vitamin B6
vitamin C
vitamin D
vitamin D2
vitamin D3
vitamin E
vitamin H
vitamin K
vitamin K1
vitamin K2
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vitiate

vi·ti·ate [ víshee àyt ] (past and past participle vi·ti·at·ed, present participle vi·ti·at·ing, 3rd person present singular vi·ti·ates)


transitive verb 
Definition:
 
1. make something ineffective: to destroy or drastically reduce the effectiveness of something, or make it invalid

2. make something faulty: to cause something to become faulty

3. debase something: to degrade something morally

[Mid-16th century. < Latin vitiare< vitium "fault, vice"]

vi·ti·a·ble adjective
vi·ti·a·tion [ vìshee áysh'n ] noun
vi·ti·a·tor [ víshee àytər ] noun
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