(Hebrews kiyor), a "basin" for boiling in, a "pan" for cooking (1 Samuel 2:14), a "fire-pan" or hearth (Zechariah 12:6), the sacred wash-bowl of the tabernacle and temple (Exodus 30:18, 28; 31:9; 35:16; 38:8; 39:39; 40:7, 11, 30, etc.), a basin for the water used by the priests in their ablutions.

That which was originally used in the tabernacle was of brass (rather copper; Hebrews nihsheth), made from the metal mirrors the women brought out of Egypt (Exodus 38:8). It contained water wherewith the priests washed their hands and feet when they entered the tabernacle (40:32). It stood in the court between the altar and the door of the tabernacle (30:19, 21).

In the temple there were ten lavers used for the sacrifices, and the molten sea for the ablutions of the priests (2 Chronicles 4:6). The position and uses of these are described 1 Kings 7:23-39; 2 Chronicles 4:6. The "molten sea" was made of copper, taken from Tibhath and Chun, cities of Hadarezer, king of Zobah (1 Chronicles 18:8; 1 Kings 7:23-26).

No lavers are mentioned in the second temple.

Noah Webster's New International Dictionary of the English Language

1. (n.) A vessel for washing; a large basin.

2. (n.) A large brazen vessel placed in the court of the Jewish tabernacle where the officiating priests washed their hands and feet.

3. (n.) One of several vessels in Solomon's Temple in which the offerings for burnt sacrifices were washed.

4. (n.) That which washes or cleanses.

5. (n.) One who laves; a washer.

6. (n.) The fronds of certain marine algae used as food, and for making a sauce called laver sauce. Green laver is the Ulva latissima; purple laver, Porphyra laciniata and P. vulgaris. It is prepared by stewing, either alone or with other vegetables, and with various condiments; -- called also sloke, or sloakan.