tomato sauce
A loanword from English, used in Japanese cooking contexts for tomato-based sauces, such as pasta sauce or pizza sauce.
I put tomato sauce on the pasta.
トマトソース is a general tomato-based cooking sauce, while ケチャップ is specifically the sweet, tangy condiment used at the table.
Variant with interpunct; sometimes used for clarity or in dictionaries.
Loanword from English 'tomato sauce'.