a gum-based opaque watercolour paint used for writing posters, etc
WordReference Random House Unabridged Dictionary of American English © 2025
post′er paint′,
- Fine Artan opaque, water-based, typically bright-colored paint with a glue-size or gum binder, that is suitable for use on posters and is usually packaged in jars. Also called poster color.
- 1935–40
Collins Concise English Dictionary © HarperCollins Publishers::
'poster paint' also found in these entries (note: many are not synonyms or translations):