1 Used other than as an idiom: see outer ,â core. ( 2 planetology) The hot liquid material found near the centre of some planets, distinct from the solid inner core. ( 3 geology) The part of the Earth between the mantle and inner core, responsible for generating the planet's magnetic field. 4  Link/Cite.
Differential Staining is a staining process which uses more than one chemical stain. Using multiple stains can better differentiate between different microorganisms or structures/cellular components of a single organism.
What is the reagent and purpose of counterstain in acid fast staining ? What is the difference between a simple and a differential stain. A simple dye use only 1 dye to color organisms where a differential stain make use of 2 chemical stain a primary and a counterstain.