IPA: /ˌsʌbˈeɪpɪkəl/
KK: /sʌbˈeɪpɪkəl/
Describing something that is located just below or near the highest point of a structure or object.
The subapical region of the leaf is crucial for photosynthesis.
Subapical → It is formed from "sub-" (meaning under or below) and "apical" (from Latin "apex", meaning peak or tip). The word "subapical" refers to something located just below the tip or peak of an object.
Think of something that is 'under' ('sub-') the 'tip' ('apical') — that's why subapical means located just below the tip.