Noah Webster's Dictionary (n.) A basin, or bowl, to hold water for washing one's hands, face, etc.

Multi-Version Concordance Washbowl (2 Occurrences) Psalms 60:8 Moab is my washpot; upon Edom do I cast my shoe; Philistia, cry aloud because of me! (See NAS) Psalms 108:9 Moab is my washpot; upon Edom do I cast my shoe; over Philistia do I cry aloud. (See NAS)