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.