a piece of calcite or a similar substance, usually in the shape of a crayon, that is used to write or draw on blackboards or other flat surfaces | a container made of glass for holding liquids while drinking |
an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant | an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant |
a pure flat white with little reflectance | a mirror; usually a ladies' dressing mirror |
a soft whitish calcite | a small refracting telescope |
| glassware collectively |
| the quantity a glass will hold |
| a brittle transparent solid with irregular atomic structure |