1. a prefix meaning 'away from,' 'separate,' or 'detached from'
Usage: used in scientific and technical terminology; commonly appears in words related to biology, chemistry, and astronomy

Examples

• The prefix 'apo-' in 'apogee' means the point farthest away from Earth.
• In 'apoptosis,' 'apo-' refers to the programmed death or separation of cells.
• The word 'apostate' uses 'apo-' to mean someone who has separated from a faith.
• 'Apocrine' glands are named with 'apo-' because they release secretions by separating part of the cell.
• In astronomy, 'aphelion' uses 'apo-' to describe the point farthest from the sun.