| Ehrlich's aniline crystal violet stain | <technique> A stain for Gram-positive bacteria. (05 Mar 2000) |
|---|---|
| twin crystal | Two crystal's that have grown together along a common face. (05 Mar 2000) |
| knife-rest crystal | A crystal of ammoniomagnesium phosphate found in alkaline urine. (05 Mar 2000) |