Concise Bible Dictionary:
Besides the use to which bowls are commonly put, the word is applied to ornaments in the shape of a bowl placed on columns or on the golden candlestick (Ex. 25:31-34; Ex. 37:17-20; 1 Kings 7:41-42).
The Golden Candlestick
Strong’s Dictionary of Hebrew Words:
Meaning:
from an unused root meaning to depress; a basin (as deepened out)