Vine's Expository Dictionary of NT Words
"a worm which preys upon dead bodies," is used metaphorically by the Lord in Mark 9:48; in some mss. vv. 44,46, cp. Isaiah 66:24 . The statement signifies the exclusion of the hope of restoration, the punishment being eternal.
denotes "devored by worms" (skolex, and bibrosko, "to eat"), Acts 12:23 .
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Vines, W. E., M. A. Entry for 'Worm'. Vine's Expository Dictionary of NT Words. https://www.studylight.org/dictionaries/eng/ved/w/worm.html. 1940.