The outermost coat, or tunica adventitia, is a tough layer consisting mainly of collagen fibres that act as a supportive element.
We know, for instance, that the couple plan to serve two cakes at their reception: a traditional, dried-and-candied-fruit-laden fruit cake, almost certainly covered with a thick, tough layer of marzipan; and a cake whose main ingredient is something akin to chocolate graham crackers.
His tough layer of skin, a result of atavism, makes him an intimidating foe; though he also possesses regenerative powers, superhuman strength, endurance, speed, and senses.
This tough layer of tissue (the endoperidium) measures about 2 mm thick, encloses the gleba.
Cutting first through the tough layer of weathered skin, then past layer after layer of sub-cutaneous tissues defined by the yellows of fats and whites of connective tissues, and eventually into a layer of pink muscle fibers, we knew what we were doing was absurd.
Having undergone years of probing analysis himself, Hartman was enthralled by the fact that instead of chipping away at the tough layer of ego, LSD melted it entirely and gave way to the molten subconscious underneath.
The outermost layer, the dura mater, provides a thicker and tougher layer of protection.
Human skin has a tough outer layer of cells that produce keratin.
The bone was probably overlain by a tough, horny layer of keratin.
