Exodermis An outermost layer of thickened or suberized cortical cells that sometimes replaces the epidermal layer in the older parts of roots if the epidermal cells have died.
New Horizons' trailblazing journey to the solar system's outermost frontier took it past the orbit of Mars today at 6 a.m. EDT , 78 days after the spacecraft launched.
The outermost layer of the mucosa is the muscularis mucosa or muscularis interna, and it’s a layer of smooth muscle that contracts and helps break down food.
The " shell" of an atom isn't some hard shiny casing, as illustrations sometimes encourage us to suppose, but simply the outermost of these fuzzy electron clouds.
Hagrid, however, walked straight past it into the shade of the trees on the outermost edge of the Forest, where he picked up a crossbow that was leaning against a tree.
Whatever the case, the heart needs blood, and if we look at the heart wall, there’s three layers—the outermost layer, the epicardium, then the myocardium in the middle, and the endocardium inside the heart.