Yesterweek vs. Taxonomy — What's the Difference?

(obsolete) On the week preceding the current week.

The classification and naming of organisms in an ordered system that is intended to indicate natural relationships, especially evolutionary relationships.

Previous week, the last week before the current one.

The science, laws, or principles of classification.

The week last past; last week.

An ordered arrangement of groups or categories

The science or the technique used to make a classification.

A classification; especially, a classification in a hierarchical system.

The science of finding, describing, classifying and naming organisms.

That division of the natural sciences which treats of the classification of animals and plants, primarily by consideration of their natural relationships with respect to their structure or genetic origin; the laws or principles of classification; systematics.

A systematic arrangement of objects or concepts showing the relations between them, especially one including a hierarchical arrangement of types in which categories of objects are classified as subtypes of more abstract categories, starting from one or a small number of top categories, and descending to more specific types through an arbitrary number of levels. An ontology usually contains a taxonomy as one of the important principles of organization.

A classification of organisms into groups based on similarities of structure or origin etc

(biology) study of the general principles of scientific classification

Practice of classifying plants and animals according to their presumed natural relationships