The simplest form of agriculture is that in which crops are raised from one patch of ground till it is exhausted, when it is allowed to go wild and abandoned for another.
The simplest type of ocellus is exemplified by the exumbral ocellus of Aurelia, a simple patch of pigment-cells interspersed with visual cells, the whole on a level with the remaining ectodermal epithelium.
One placed a sleep patch on her ear to prevent her from waking and scooped her up while the other grabbed the last suitcase out of her bedroom.
Regarding now the outcrops of bed-rock, there are exposures of Algonkian (doubtful, and at most a mere patch on Pilot Knob), Archean, Cambrian, Ordovician, Silurian, Devonian, sub-Carboniferous and Carboniferous.
Her nightmares that night involved her sister, Hannah, being eaten by the jaguar with the white patch over his eye.
From this higher level, Dean could see a patch of the road a thousand feet below him.
A cathode discharge is projected through two small holes in plates in the narrow part of the tube on a fluorescent screen at the end of the enlarged end, and the cathode ray or pencil depicts on it a small bright greenish patch of light.
No man ever stood the lower in my estimation for having a patch in his clothes; yet I am sure that there is greater anxiety, commonly, to have fashionable, or at least clean and unpatched clothes, than to have a sound conscience.
The fur of the dormouse is tawny above and paler beneath, with a white patch on the throat.
Pigmented patch of ecto- ect, Ectoderm.