cold noodles (Korean-style)
Typically refers to Korean naengmyeon, served in a chilled broth or with a cold sauce.
夏になると冷麺が食べたくなる。
When summer comes, I start craving cold noodles.
chilled Chinese noodles
Kansai dialect term for what is commonly called 冷やし中華 (hiyashi chūka) in standard Japanese.
See also: 冷やし中華
cold Chinese noodles with dipping soup
Similar to つけ麺 (tsukemen) but served cold; noodles are dipped into a separate chilled soup.
See also: つけ麺
この店の冷麺はつけだれが冷たくて美味しい。
The cold noodles at this shop have a delicious chilled dipping sauce.
In Kansai, 'reimen' refers to chilled Chinese noodles.
Compound of 冷 (rei, 'cold') and 麺 (men, 'noodles'). The Korean-style sense likely entered Japanese via Korean 냉면 (naengmyeon).