بص

قَرَبٌ بَصْبَاصٌ قرب بصباص , (T, K,) or خِمْسٌ بَصْبَاصٌ, (S,) A laborious, (T, S, K,) fatiguing, (T,) nightjourney to water, (T, K,) or journey in which the second and third and fourth days are without water; in which is no flagging: (S:) [as also صَبْصَابٌ.] ― -b2- يَوْمٌ بَصْبَاصٌ A vehemently-hot day. (TA.)