from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Variant of tympanic.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. tympanic
from the GNU version of the Collaborative International Dictionary of English
- n. Tympanic.
from The Century Dictionary and Cyclopedia
- n. The posterior one of the pterygoid bones in fishes: it is usually between the hyomandibular and the mesopterygoid: same as metapterygoid, 2.
- n. The upper anterior bone of the gill-cover in fishes: not homologous with the bone called tympanal by Cuvier: Same as præoperculum, 2.
- Same as tympanic.
Sorry, no etymologies found.
They also have tympanal organs, sensitive to sound, situated on the thorax or abdomen.
Huxley to recognise what are the true homologues of the quadrate, the palatine and the pterygoid in adult bony fish, and to prove that the symplectic and the metapterygoid (tympanal, Cuvier) are bones peculiar to fish.
In fact, ears "(tympanal organs) lie beneath a drum-like membrane (the tympanum) where they respond to sound," says entomologist
This oval-shaped tympanal membrane, with an unusual dome in the middle, is attached directly to sensory organs and is responsible for converting sound waves into signals that can be picked up by nerve cells.
Not all species have them, but this one, which amazes people through its beautiful coloring, has its tympanal membrane located at the base of the wing.
The oval-shaped tympanal membrane, with an unusual dome in the middle, is attached directly to sensory organs and is responsible for converting sound waves into signals that can be picked up by nerve cells.