nephridiopore/niʹfridi·əpaw/ noun

• rollick
• rollicking
• roll in
• rolling mill
• rolling pin
• rolling stock
• rolling stone
• roll in the hay
• rollmop
• roll neck
• roll on
• roll-on
• roll-on roll-off
• roll out
• rollout
• roll over
• rollover
• rolltop desk
• roll up
• roll-up
• roll up one's sleeves
• Rolodex
• roly-poly
• ROM
• Rom.