1. the practice of eating only plant foods and not eating meat, fish, or poultry
2. the belief or principle that it is wrong to eat meat for moral, health, or environmental reasons

Examples

• She adopted vegetarianism for health reasons.
• Vegetarianism has become more popular in recent years.
• His vegetarianism is based on concerns about animal welfare.
• The restaurant offers many options for those practicing vegetarianism.
• Vegetarianism can provide all necessary nutrients when properly planned.
• They discussed the environmental benefits of vegetarianism.
• Her family supported her decision to embrace vegetarianism.