- indicating a standard low level of activity of an organism, as during total rest.
- of an amount required to maintain this level.
Related formsba·sal·ly, adverbpre·ba·sal, adjective
Examples from the Web for basal
I have applied this term to the oblique descent made by the umbo, towards the basal extremity of the anterior side of bivalves.Zoological Illustrations, Volume III|William Swainson
Indeed, even among the wooded slopes, a habitation along the basal line of the mountain axis seems to be much preferred.A Hand-book to the Primates, Volume 1 (of 2)|Henry O. Forbes
The 5-foot ridgepole of the steep, heavy, grass roof is supported by two posts rising from the basal timbers of the third story.The Bontoc Igorot|Albert Ernest Jenks
The reason why the basal lamina is here small is because it contains the nuclei of no cranial nerves.
There is an imperfect cleavage parallel to the basal pinacoid, and the fracture is conchoidal.