noun
metal frame; wire frame (glasses)
Wasei-eigo term primarily used for eyeglass frames made of metal, as opposed to plastic or other materials.
wasei-eigo (Japanese-coined English), from metal frame
新しいメガネはメタルフレームにした。
I chose metal frames for my new glasses.
メタルフレームのサングラスを探しています。
I'm looking for sunglasses with metal frames.
Variant with interpunct; less common but still seen.
Wasei-eigo from English 'metal' + 'frame'. Used in Japanese to refer specifically to metal eyeglass frames.