relating to, describing, or located at the topmost tip or end (apex) of something;
e.g. On a plant, apical buds make branches extend further while lateral buds add more branches.
(adjective)
(phonetics) spoken using the tip of the tongue, referring to consonants whose sounds are produced with the tip of the tongue, such as "n", "l", and "r";
e.g. The pronunciation of an apical consonant involves the positioning of the tongue in a particular part of the mouth.