a semivowel produced with the tongue near the palate (like the initial sound in the English word `yeast')
produced with the front of the tongue near or touching the hard palate (as `y') or with the blade of the tongue near the hard palate (as `ch' in `chin' or `j' in `gin')
relating to or lying near the palate; "palatal index"; "the palatine tonsils"
(chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid
(physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium; "the absorption of photons by atoms or molecules"