Help Wordnik hunt for a million missing words by backing our Kickstarter!


from The Century Dictionary and Cyclopedia

  • n. In entomology, a dilatation of the trachea of certain insects, which enables them to change their specific gravity by filling the trachea with or emptying it of air.
  • n. In ichthyology, a vesicle containing air, connected with the swim-bladder and also with the ear-parts.
  • n. Same as air-float.


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.