different between aggressiveness vs taxonomy

English

aggressive +? -ness

aggressiveness (usually uncountable, plural aggressivenesses)

(uncountable) The state or quality of being aggressive.
(uncountable) The propensity of a soil or water to dissolve metal or cement structures.
The aggressiveness of various sulfate salts towards concrete is partly related to solubility.
(countable) The result or product of being aggressive.

Borrowed from French taxonomie. Surface analysis taxo- +? -nomy.

taxonomy (countable and uncountable, plural taxonomies)

The science or the technique used to make a classification.
A classification; especially, a classification in a hierarchical system.
(taxonomy, uncountable) The science of finding, describing, classifying and naming organisms.

taxonomics
(science of finding, describing, classifying and naming organisms): alpha taxonomy

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