1. Fourfold; growing by fours.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• 1uatern,
• 2uatern,
• wuatern,
• auatern,
• qyatern,
• qhatern,
• qjatern,
• qiatern,
• q8atern,
• q7atern,
• quztern,
• qustern,
• quwtern,
• quqtern,
• quafern,
• quagern,
• quadern,
• quateron,
• quarteron,
• Quatorn

• quaternate,
• quaternion,
• quaternity,
• quatrain,
• quaternary.

The adjective form of the word "quatern" is "quaternary".

The plural form of the word "quatern" is "quaterns".

The singular form of the word "quatern" is "quaternion"