أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
It's a prefix which generally can mean two things, one is that there is an element of green, as in chlorophyll.Secondly it denotes the presence of chlorine in a substance, ie chloroform.
representing GREEN
It is usually used as a noun which is an affix that is added in front of the world.