from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. In the shape of half of a circle or a semicircle.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the form of half of a circle.
from The Century Dictionary and Cyclopedia
- Having the form of a half-circle.
- Specifically, in anatomy, noting the three canals of the internal ear, whatever their actual shape. They are usually horseshoe-shaped or oval, and sometimes quite irregular. See canal, and cuts under Crocodilia, ear, and periotic.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. curved into a half circle
Attached to the utricle are three tubes that start and end there, each bending in a semicircle so they are called semicircular canals.
The principal charm, however, belongs to the grotto with the river which it discharges -- the site of which may be described as a semicircular termination of a valley on a natural platform half way up a cliff -- the water tumbles down in short cascades for some distance; the grotto inside is untouched by chisel squarings or embellishment, just as Juvenal wished the grot of AEgeria to be.
At the far end was a kind of semicircular nave with built-in benches, which reminded me of a sauna.
To accomplish this, the heated open end of the cylinder is laid horizontally upon a kind of semicircular cradle, and is held there by tongs handled by two men.
Thus the Giants 'Tombs of Sardinia all have a concave façade which forms a kind of semicircular court in front of the entrance to the tomb.
Wantley was one of those who preferred chewing and he had been spitting upon the floor to such an extent that he was by this time partly surrounded by a kind of semicircular moat of dark brown spittle.
Wherever the architect makes use of a round-headed opening he reinforces its outlines with a kind of semicircular frieze, to which brilliant colours or bold reliefs would give no little decorative value.
About 14 leagues farther on we came to another cape, the shore between forming a kind of semicircular bay, and the beach was composed of sand thrown up like, a mound or dike, over which the whole country appeared nothing but marshes and pools of water as far as the eye could reach.
A General History and Collection of Voyages and Travels — Volume 06 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time
The dome structure itself dates back to the Roman Empire, where the semicircular arch was used for creating large openings in walls.
The feeling of a Strangelovian Old Curiosity Shop was reinforced when I first sat down across a conference table from Burr and noticed the rather bizarre backdrop: a semicircular wall of brown cardboard packing boxes that had all been Magic Markered “NUCLEAR WEAPONS SECRETS.”