phenolphthalin التعريفات والمعاني == English == === Noun === phenolphthalin (countable and uncountable, plural phenolphthalins) (organic chemistry) The colorless reduced form of phenolphthalein. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة phenolphthalins phenolphthalein Phenolphthalein Phenolphthaleins phenolphtalein phenolphthaleins phenol phthalein