1. intercostal muscle muscles between the ribs; they contract during inspiration
  2. intercostal artery several arteries and supplying the intercostal spaces of the rib cage
  3. intercostal vein several veins draining the intercostal spaces of the rib cage
  4. intercostal located or occurring between the ribs
  5. anterior serratus muscle muscles that rotate the scapula and elevate the rib cage
  6. antagonistic muscle (physiology) a muscle that opposes the action of another
  7. instrumental music music produced by playing a musical instrument
  8. nostalgia a longing for something past
  9. interesting arousing or holding the attention
  10. nostalgic unhappy about being away and longing for familiar things
  11. interstice small opening between things
  12. pentecostalism the principles and practices of Pentecostal religious groups
  13. pterygoid muscle muscle descending from the sphenoid bone to the lower jaw
  14. Pentecostalist any member of a Pentecostal religious body
  15. interstellar between or among stars
  16. inferior rectus muscle the ocular muscle whose contraction turns the eyeball down and medially
  17. interstellar space the space between stars
  18. skeletal muscle a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes
  19. intergalactic existing or occuring between collections of star systems
  20. incidental music music composed to accompany the action of a drama or to fill intervals between scenes

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