Form Partner

undefined: A form partner is a headmate that formed or was discovered at the same time as one or more other headmates. They may share similar qualities or sources. They can also be called formmates, and may refer to each other as form partners.

Related Terms
Syslings, seedlings, and systwins are headmates that are related to one or more other headmates, usually by forming at the same time, and may be considered formmates.