The word "manducated" is spelled with the letter "d" in the middle, not "t," as may be expected. The correct pronunciation is man-dyoo-key-tid, with the stress on the second syllable. The "c" is pronounced like "s" as in celebrate, and the "u" is pronounced like in "cut" as opposed to "cute." Manducated means to chew or to eat with gusto, and is a more formal term for the verb "to munch."
The word "manducated" is derived from the Latin word "manducatus", which is the past participle of the verb "manducare". "Manducare" means "to chew" or "to eat" in Latin.