having to do with the tip of a leaf or stem.

Merriam-Webster Online Dictionary
apical (adjective)
of, relating to, or situated at an apex
of, relating to, or formed with the tip of the tongue - n, l, and r are apical consonants
apical (Wikipedia)

Apical means "pertaining to an apex". It may refer to:

  • Apical ancestor, refers to the last common ancestor of an entire group, such as a species (biology) or a clan (anthropology)
  • Apical (anatomy), an anatomical term of location for features located opposite the base of an organism or structure
  • Apical (chemistry), a position in certain molecular geometries in chemistry
  • Apical (dentistry), direction towards the root tip of a tooth
  • Apical consonant, a consonant produced with the tip of the tongue
  • Apical dendrite, a type of dendrite found on pyramidal neurons
  • Apical dominance, the phenomenon whereby the main, central stem of a plant is dominant over other side stems
  • Apical Group, a palm oil exporter
  • Apical membrane, in cell biology the surface of a plasma membrane that faces inward to the lumen
  • Apical meristem, or apex, on a flower
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