IPA: //ˈbeɪsɪnəl//
KK: /ˈbeɪsɪnəl/
Relating to a low area of land where water collects, often forming a lake or a similar body of water.
The geologist studied the basinal features of the region to understand its water drainage patterns.
Basinal → It is formed from "basis" (from Greek "basis", meaning base or foundation) and the suffix "-al" (meaning pertaining to). The word "basinal" refers to something that is related to or characteristic of a basin or a depression in the earth's surface.
Think of 'basis' as the 'foundation' of something, and remember that 'basinal' means pertaining to a basin, which is a kind of foundational depression.