Manducator

Now if any Transatlantic Philistine can crack the shell of this German nut, and extract an eatable kernel, he must possess a manducator pretty considerably stronger than that with which Samson cracked the skulls of the ancient Philistines in the Holy Land—the jaw-bone of an ass.

Source: wiktionary

They may in a sense, be almost considered superior to the original, or natural teeth, as merely mechanical manducators, wanting only the nervous connection conferring tactile sense, to make them life-like.

Source: wiktionary

The food will be kept warm by means of a spirit lamp, which will give the requisite heat to the “manducator.” This instrument will be found very advantageous in the army and navy for crushing biscuit. Made of large size the “manducator” may be used to prepare food for animals, as instead of cutting the food this instrument by masticating it renders it easier of digestion.

Source: wiktionary

What causes the head of a shepherd dog to appear to be coarse and ignoble is not an increased distension or elevation of the skull cavity, no supposed augmentation in the space for the brain, but it rests on circumstances which are purely external, such as a bad proportion between the length and the breadth, large bones, an especially pronounced ridge of the cranium, a large overhanging zygomatic arch, and lastly, thick layers of short muscles, especially those of the temporal muscle and the manducator.

Source: wiktionary