upper surface

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Noun1.upper surface - the side that is uppermost
ceiling - the overhead upper surface of a covered space; "he hated painting the ceiling"
side - an extended outer surface of an object; "he turned the box over to examine the bottom side"; "they painted all four sides of the house"
References in classic literature ?
The declivity of the upper surface, from the circumference to the centre, is the natural cause why all the dews and rains, which fall upon the island, are conveyed in small rivulets toward the middle, where they are emptied into four large basins, each of about half a mile in circuit, and two hundred yards distant from the centre.
At the centre of the island there is a chasm about fifty yards in diameter, whence the astronomers descend into a large dome, which is therefore called FLANDONA GAGNOLE, or the astronomer's cave, situated at the depth of a hundred yards beneath the upper surface of the adamant.
It might be that the upper surface of their characters was all that she had, thus far, plainly seen in Norah and Magdalen.
Hurriedly, therefore, she rose until presently her craft broke through into the glorious sunlight that transformed the upper surface of the somber element into rolling masses of burnished silver.
The spindle turns on the knees of Necessity; and on the upper surface of each circle is a siren, who goes round with them, hymning a single tone or note.
They had worn smooth the bark upon its upper surface.
15) The loaf is a flattish cake with two intersecting lines scored on its upper surface which divide it into four equal parts.
It had been arranged for the purpose, early in the morning; its rich slabs of marble, all scratched by the heels of law clerks, supported a cage of carpenter's work of considerable height, the upper surface of which, within view of the whole hall, was to serve as the theatre, and whose interior, masked by tapestries, was to take the place of dressing-rooms for the personages of the piece.
from the moral sweet, the moral deep, the moral fair; that is, again, to contrive to cut clean off this upper surface so thin as to leave it bottomless; to get a one end, without an other end.
Contract awarded for The upper surface of seconds and 1 school (and some Gapyeong) LED Light Replacement Electrical engineering
The space elevator tower has a segmented structure, formed of pressurised cells, while payloads would be launched from a pad or runway on the upper surface of the top segment of the structure.
The Winglets reduce the drag caused by wingtip vortices, the twin tornados formed by the difference between the pressure on the upper surface of an airplane's wing and that on the lower surface.

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