Number prefixes

12345678910111213141516
Across
  1. 2. a substance formulated by the reaction of sorbitan fatty acid ester
  2. 4. sadness or displeasure
  3. 7. a photograph developed in black and white or in varying tones of only one color
  4. 9. any of various compounds that crystallize with 1.5 molecules of water
  5. 10. a plane figure with five straight sides and five angles.
  6. 13. using more than one medium of expression or communication
  7. 14. soft-bodied, eight-limbed molluscs of the order Octopoda
  8. 15. a 10-point star polygon
  9. 16. any of five equal groups into which a population can be divided according to the distribution of values of a variable
Down
  1. 1. a parallel kinematic motion device
  2. 3. a half of a sphere
  3. 5. having a body derived from three embryonic cell layers
  4. 6. an ancient Roman coin and monetary unit equal to one quarter of a denarius
  5. 8. not injured
  6. 11. a building divided into four self-contained residences
  7. 12. a vehicle composed of two wheels