The tag alias #62162 vials -> vial has been approved.
Reason: Alias a less-common plural (62) to a more-common singular (437). If you have vials, you have at least one vial.
I'm pretty sure they both mean the same thing - a small container of liquid.
edit: add links
EDIT: The tag alias vials -> vial (forum #364741) has been approved by @gattonero2001.
Updated by auto moderator