1. Heterobasidiomycetes category used in some classification systems for various basidiomycetous fungi including rusts and smuts
  2. obstinate marked by tenacious unwillingness to yield
  3. water-base paint paint in which water is used as the vehicle
  4. insecticide a chemical used to kill bugs
  5. two-winged insects insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing
  6. order Pseudoscorpiones false scorpions
  7. Pteropus capestratus a variety of fruit bat
  8. transactinide any of the artificially produced elements with atomic numbers greater than 103
  9. Ophrys insectifera European orchid whose flowers resemble flies
  10. striated muscle tissue muscle tissue characterized by transverse stripes
  11. tetrabasic acid an acid containing four replaceable hydrogen atoms per molecule
  12. water biscuit a thin flour-and-water biscuit usually made without shortening; often served with cheese
  13. Notropis atherinoides small blunt-nosed fish of Great Lakes and Mississippi valley with a greenish luster
  14. tribasic acid an acid containing three replaceable hydrogen atoms per molecule
  15. insecticidal of or relating to insecticide
  16. Petasites sagitattus American sweet-scented herb
  17. watered stock stock representing ownership of overvalued assets
  18. Bose-Einstein statistics (physics) statistical law obeyed by a system of particles whose wave function is not changed when two particles are interchanged (the Pauli exclusion principle does not apply)
  19. appendicitis inflammation of the vermiform appendix
  20. insecticidally by means of an insecticide