H5340. natsats
I. [נָצַץ] verb shine, sparkle (Late Hebrew נִצְנֵץ; akin to Arabic sparkle, flash, נְעָא ᵑ7); —
Qal Participle נְחשֶׁת כְּעֵין וְנֹצְצִים [Ezek 1:7] (of cherubim); — PerlesAnal.45 proposes נוֺצִיצָם their plumage (׳נ || form of נוֺצָה), compare Ew.