1. infrared radiation electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
  2. infrared emission electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
  3. interpretation the act of expressing something in an artistic performance
  4. inferior thyroid vein any of several veins on each side that drain the thyroid gland and empty into the innominate vein
  5. infatuation a foolish and usually extravagant passion or love
  6. infiltration a process in which individuals penetrate an area
  7. infrared ray a ray of infrared radiation; produces a thermal effect
  8. infrigidation the process of cooling or freezing for preservative purposes
  9. information knowledge acquired through study or experience
  10. ultraviolet radiation radiation lying in the ultraviolet range
  11. infrared light electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
  12. infrared therapy the use of infrared radiation (as by infrared lamps or heating pads or hot water bottles) to relieve pain and increase circulation to a particular area of the body
  13. interior decoration the trade of planning the layout and furnishings of an architectural interior
  14. mental retardation lack of normal development of intellectual capacities
  15. infrastructure the basic features of a system or organization
  16. neutron radiation radiation of neutrons (as by a neutron bomb)
  17. radio radiation an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
  18. ionizing radiation high-energy radiation capable of producing ionization in substances through which it passes
  19. infraction a violation of a law or rule
  20. background radiation radiation coming from sources other than those being observed

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.