Definition of basal in English:

basal

Syllabification: ba·sal
Pronunciation: /ˈbāsəl, -zəl
 
/

adjective

[attributive] chiefly • technical
  • Forming or belonging to a bottom layer or base.
    More example sentences
    • Cells are replaced from a basal layer of proliferating epidermal cells in contact with the basal lamina.
    • These cells originate in the lower epidermis by division of basal cells in the basal layer.
    • Thus, for four of the five treatments, the ratios of basal leaf to root were similar.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody