Answer: styro

AnswerCrossword Clue
STYRO

Start to foam?

STYRO

Prefix on foam

STYRO

Foam prefix

STYRO
Foam opening
STYRO
Packaging foam prefix
STYROPrefix with foam
STYROFoam opener
STYROPrefix in a Dow trademark
STYROCommercial prefix with foam
STYROFoam forerunner
STYROFoam forerunner?
STYROPrefix for foam
STYROFoam preceder
STYROCommercial prefix since the 1950s
STYROFoam lead-in
STYROLead-in to foam