MASTAX
Meaning of MASTAX in English
/mas"taks/ , n.
the muscular pharynx of a rotifer, containing a chewing apparatus.
[ 1850-55; mástax mouth, jaws, akin to masâsthai to chew ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012