As a proper noun phosphorus

is a name sometimes used for hesperus, the personification in greek mythology of the planet venus.

As a noun chernozem is

a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

As nouns the difference between ammonia and chernozem

is that ammonia is (inorganic compound) a gaseous compound of hydrogen and nitrogen, nh₃, with a pungent smell and taste while chernozem is a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

Chernozem is a derived term of chernozemic.

As an adjective chernozemic

is being or containing chernozem.

As a noun chernozem is

a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

Greyzem is a see also of chernozem.

As a noun chernozem is

a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

As nouns the difference between kastanozem and chernozem

is that kastanozem is a kind of soil, brighter than chernozem and related to the mollisols, that is rich in humus and originally covered with early maturing native grassland vegetation, which produces a characteristic brown surface layer while chernozem is a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

Phaeozem is a see also of chernozem.

As a noun chernozem is

a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

As a noun cohomology

is (mathematics) a theory associating a system of quotient groups to each topological space.

As an adjective cohomological is

of or pertaining to cohomology.

As verbs the difference between render and cass

is that render is to cause to become while cass is (obsolete|transitive) to render useless or void; to annul; to reject; to send away.

As a noun render

is a substance similar to stucco but exclusively applied to masonry walls or render can be one who rends.

As an adjective useless

is without use or possibility to be used.

As a verb cass is

(obsolete|transitive) to render useless or void; to annul; to reject; to send away.

As verbs the difference between void and cass

is that void is (label) to make invalid or worthless while cass is (obsolete|transitive) to render useless or void; to annul; to reject; to send away.

As an adjective void

is containing nothing; empty; vacant; not occupied; not filled.

As a noun void

is an empty space; a vacuum or void can be .