1. waste matter any materials unused and rejected as worthless or unwanted
  2. white matter whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
  3. wastewater water mixed with waste matter
  4. estimator an expert at calculation
  5. antimatter mass consisting of antiparticles of normal substances
  6. waste material any materials unused and rejected as worthless or unwanted
  7. estimate judge tentatively
  8. white madder Eurasian herb with ample panicles of small white flowers
  9. foster-mother a woman who is a foster parent and raises another's child
  10. foster mother a woman who is a foster parent and raises another's child
  11. wattmeter an instrument for measuring in watts the flow of power in an electrical circuit
  12. altimeter an instrument that measures the height above ground
  13. earth mother the earth conceived of as the female principle of fertility
  14. past master someone who was formerly a master
  15. asthmatic relating to breathing with a whistling sound
  16. fathometer depth finder for determining depth of water or a submerged object by means of ultrasound waves
  17. astomatous having no mouth or mouthlike opening
  18. end matter written matter following the main text of a book
  19. astomatal lacking a stoma or stomata
  20. esteemed having an illustrious reputation; respected