Boyd’s Bible Dictionary:
(bellowers). Bells of gold were appended to priestly robes (Ex. 28:33-35). Attached to anklets (Isa. 3:16-18). Horses ornamented with bells (Zech. 14:20).
Concise Bible Dictionary:
1. paamon, from “to strike” (Ex. 28:33-34; Ex. 39:25-26). They were on Aaron’s robes, “a bell and a pomegranate,” testimony and fruit were to mark all his goings, as they should accompany the Christian’s walk through being attached to Christ.
2. metsilloth, “bells” from their tinkling (Zech. 14:20), but in the margin is read “or bridles.” These are supposed to be the metallic plates suspended from the heads of the horses, on which inscriptions can be engraved, and which make a tinkling noise. At the restoration and blessing of Israel “Holiness unto the Lord” will be engraved on such plates.
Strong’s Dictionary of Hebrew Words:
Transliteration:
mtsillah
Meaning:
from 6750; a tinkler, i.e. a bell