سَمَاءٌ مَاطِرَةٌ, (A, Msb,) and ↓مُمْطِرَةٌ, (A,) A raining sky. (A, Msb.) See also مِمْطَارٌ.
3.
يَوْمٌ مَاطِرٌ, (A, K,) and ↓مُمْطِرٌ, (K,) and ↓مَطِير, (A,) and ↓مَطِرٌ, (K,) which last is a possessive epithet, (TA,) (tropical:) A day of rain. (A, K.)