The meaning of Pulse in the Bible
(From International Standard Bible Encyclopedia)

puls (zero'-im (Daniel 1:12 margin, "herbs"), zere'onim (Daniel 1:16); compare zerua', "sowing seed" (Leviticus 11:37), and zeru'im, "things sown" (Isaiah 61:11)): (1) In Daniel 1:12, Daniel 1:16, it must mean herbs or vegetables grown from seeds; a vegetable diet is what is implied. (2) In II Samuel 17:28, "pulse" after "parched" is not in the original, but is probably more correct than the translation in (1), as "pulse" usually implies leguminous plants, peas, beans, etc.

See more on the meaning of Pulse in the Bible:
Pulse {Easton's Bible Dictionary}

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