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base, basal

Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
No Taxon (Glossary)
No Taxon (B)
No Taxon base, basal
Identification
base noun, adjective basal - (general) that portion whereby it is affixed to the body; the root or bottom upon which an organ stands, base of antenna, base of elytra. (Wing) the narrow attachment of the wing to the thoracic segment.