Usage: 3 forms in 7 verses
Form Translated As     In Verse(s)
ροϊσκων figures of pomegranates LXX.Exod.39.25
ροϊσκουσ figures of pomegranates LXX.Exod.28.33LXX.Exod.28.33LXX.Exod.39.24LXX.2Chr.3.16
pomegranate figures LXX.Exod.39.26
ροϊσκον figure of a pomegranate LXX.Exod.28.34

Liddell-Scott-Jones

ῥοΐσκος (rhoiskos) a pomegranate figure G:N-M

ῥοΐσκος, ,

__Adiminutive of ῥόα, small pomegranate: hence, knob or tassel shaped like a pomegranate, [LXX+1st c.AD+]

LSJ Scripture Refs: LXX.Exod.28.29*