basal

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Related to basal surface: basal lamina

basal

[′bā·səl]
(biology)
Of, pertaining to, or located at the base.
(physiology)
Being the minimal level for, or essential for maintenance of, vital activities of an organism, such as basal metabolism.
References in periodicals archive ?
They differ from all known chondrichthyan teeth in several features of dental morphology: in the presence of a unique transversal basal canal occurring as a prominent tube close to the basal surface, in very fine and dense striation of cusps and in an arched base without well-developed extension and articulation elements.
The teeth would not extensively overlap each other but rather the lingual rim of each tooth would be in contact with the shallow longitudinal groove on the labial side of the tooth in front; the basal surface of adjacent teeth in the same row would abut on each other forming an archlike structure.
Based on the HL slopes, the basal surface free energies are estimated (see Table 2).