dioptase /dī-opˈtās/ (mineralogy)

An emerald-green acid copper silicate

• no-trumper
• no-trumps
• not say boo to a goose
• not see beyond one's nose
• not see further than the end of one's nose
• not see the wood for the trees
• nott
• not take no for an answer
• not tell chalk from cheese
• not that
• not the end of the world
• not the faintest
• not the full quid
• not the full shilling
• not the word for it
• not to be sneezed at
• not to be sniffed at
• not to give a monkey's
• not to have a ghost
• not to have a ghost of a chance
• not to know a B from a battledore
• not to lead the life of a dog
• not to mention
• not to put too fine a point on it
• not to say