red bean

Short definition from Wiktionary

Noun

1. 1
   The azuki bean (Vigna angularis), most common in East Asia.
2. 2
   The rice bean (Vigna umbellata).
3. 3
   Any of various red varieties of the common bean (Phaseolus vulgaris), including the kidney bean, Honduran red bean, and Salvadoran red bean.
4. 4
   A paste made of azuki beans.