noun, noun which may take the genitive case particle 'no'
frost-free; self-defrosting
Wasei-eigo from English 'no frost'. Used for refrigerators, freezers, and similar appliances that automatically prevent frost buildup.
wasei-eigo (Japanese-coined English), from no frost
This refrigerator has a frost-free function.
A frost-free freezer saves you the trouble of defrosting.
Variant spelling with a middle dot; less common but seen in some product descriptions.
Wasei-eigo from English 'no frost'. It is wasei.