Boyd’s Bible Dictionary:
One of the smaller vessels of the tabernacle, for holding the blood of the sacrificial victims. A larger vessel in John 13:5.
Concise Bible Dictionary:
There are four Hebrew words used for basins nearly all referring to the temple service.
1. aggan, “a cup, bowl, or basin” (Ex. 24:6).
2. kephor, large cup or bowl, probably for the wine when drunk before the Lord; when blood is spoken of a different word is used (1 Chron. 28:17; Ezra 1:10; Ezra 8:27).
3. mizraq, “large basin or bowl,” used for holding the blood that had to be sprinkled (Ex. 27:3; 38:3; Num. 7:13-85) “bowls”; (1 Kings 7:40,45,50; 2 Kings 12:13; 2 Chron. 4:8,11,22; Neh. 7:70).
4. saph, “dish, bowl” (Ex. 12:22; 2 Sam. 17:28; Jer. 52:19). In the New Testament νιπτήρ, “large basin,” which our Lord used when he washed the feet of His disciples (John 13:5).
Strong’s Dictionary of Greek Words: