Nutrition An edible plant or part of a plant other than a sweet fruit or seed (nut). Defining a plant food as a vegetable is somewhat arbitrary and depends on use. As an example, tomatoes are botanically defined as fruits, but used as vegetables. Vox populi A common, albeit un-PC, term for a person in persistent vegetative state.
The definition of abstain is choosing to not do something. An example of abstain is to not eat animal products during Lent. Abstain means to not vote. An example of abstain would be a senator who chooses not to vote on a particular bill.
Abstinence: not using a drug, usually one that had previously been used problematically. Not all drug treatment methods work towards abstinence. Abuse: The term drug-abuse is a social, legal and medical construction; legally, the use of any illegal drug could be construed as drug-abuse. Medically, the use of medicines in a non-prescribed manner would be drug-abuse.