1. extremely to the greatest possible degree
  2. extracellular fluid liquid containing proteins and electrolytes including the liquid in blood plasma and interstitial fluid
  3. extremely low frequency below 3 kilohertz
  4. extreme point the point located farthest from the middle of something
  5. external gill occurs in some mollusks and in tadpoles and other immature amphibians
  6. exterminable capable of being totally destroyed or wiped out
  7. extremely high frequency 30 to 300 gigahertz
  8. extracellular located or occurring outside a cell or cells
  9. extralegal not regulated or sanctioned by law
  10. extrapolate draw from specific cases for more general cases
  11. external iliac vein a continuation of the femoral vein
  12. extreme unction a Catholic sacrament
  13. extramarital characterized by adultery
  14. external orifice the orifice through which urine is discharged
  15. external drive a drive with its own power supply and fan mounted outside the computer system enclosure and connected to the computer by a cable
  16. extramural carried on outside the bounds of an institution or community
  17. external angle the supplement of an interior angle of a polygon
  18. extreme of the greatest possible degree, extent, or intensity
  19. extremity the outermost or farthest region or point
  20. extremeness the quality of being extreme