Relating to or located on the outer or upper surface of a base or basal structure.
From Greek 'epi' meaning 'upon' or 'above,' combined with 'basal' (from 'basis' meaning 'base'). The term describes something positioned over or on top of a foundation.
In biology, 'epi-' words (like epidermis, epithelium) always mean the outer layer—so epibasal means you're looking at the surface of something's base, which is a very specific anatomical position.
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