单词 | arch |
释义 | arch (once / 163 pages) 1nv 2adj An arch is a shape that resembles an upside down "U." You may find this shape in a carefully tweezed eyebrow or in the famous golden pair that make you hunger for a Big Mac. In architecture, an arch is an opening that is often found supporting the weight of a something above it — like a bridge or a wall. In downtown St. Louis, you can visit the Gateway Arch — a freestanding catenary arch that is 630 feet tall and 630 feet wide. As a verb, arch means to make an arch-like shape. "She stretched her back by arching it into a backbend." As an adjective, arch can describe something mischievous or sly: "He teased his friend with an arch comment about his shyness around girls." WORD FAMILYarch: arched, archer, arches, archest, arching, archly, archness, overarch+/archer: archers, archery/archery: archeries/archness: archnesses/overarch: overarched, overarches, overarching USAGE EXAMPLESThe headline-grabbing arch conservative from Spartanburg County faced a trio of opponents in his primary battle to win a third term in the Senate. Washington Times(Jan 02, 2017) So he and Houmam Saad, his Syrian colleague, spent four days flying a drone with a robot camera over the crumbled arches and temples. New York Times(Dec 31, 2016) Over the course of one-and-a-half-hours, the Moon's shadow will trace an arching path from Oregon in the west diagonally downwards towards South Carolina. BBC(Dec 30, 2016) 1 1n (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it Hypo|Hyper abutment arch an arch supported by an abutment broken archan arch with a gap at the apex; the gap is usually filled with some decoration camber archan arch with a straight horizontal extrados and a slightly arched intrados corbel arch(architecture) an arch constructed of masonry courses that are corbelled until they meet flat arch, straight archan arch with mutually supporting voussoirs that has a straight horizontal extrados and intrados pier archan arch supported on piers pointed archan arch with a pointed apex; characteristic of Gothic architecture proscenium archthe arch over the opening in the proscenium wall rampant archan arch whose support is higher on one side than on the other round archan arch formed in a continuous curve; characteristic of Roman architecture rowlock archan arch that is formed with more than one concentric row of voussoirs safety archan undecorated arch that is included in order to strengthen or support a construction scoinson arch, sconcheon archan arch that supports part of the wall segmental archa shallow arch; an arch that is less than a semicircle shouldered archan arch consisting of a horizontal lintel supported at each end by corbels that project into the aperture diminished arch, scheme arch, skeen arch, skene archan arch whose height is less than half its width skew archan arch whose jambs are not at right angles with the face squincha small arch built across the interior angle of two walls (usually to support a spire) trimmer archan arch built between trimmers in a floor (to support the weight of a hearth) triumphal archa monumental archway; usually they are built to commemorate some notable victory Tudor arch, four-centered archa low elliptical or pointed arch; usually drawn from four centers bell archa round arch resting on corbels drop archa blunt pointed arch drawn from two centers within the span Gothic archa pointed arch; usually has a joint (instead of a keystone) at the apex Moorish arch, horseshoe archa round arch that widens before rounding off keel arch, ogee archa pointed arch having an S-shape on both sides Roman arch, semicircular archa round arch drawn from a single center basket-handle arch, three-centered archa round arch whose inner curve is drawn with circles having three centers trefoil archa pointed arch having cusps in the intrados on either side of the apex trumpet archa conical squinch construction, structure a thing constructed; a complex entity constructed of many parts 2n a passageway under a curved masonry construction they built a triumphal arch to memorialize their victory Syn|Hyper archway entrance, entranceway, entree, entry, entryway something that provides access (to get in or get out) 3n a curved shape in the vertical plane that spans an opening Hyper curve, curved shape the trace of a point whose direction of motion changes 4n a curved bony structure supporting or enclosing organs (especially the inner sides of the feet) Hypo|Hyper metatarsal arch the short lateral arch formed by the heads of the metatarsals instepthe arch of the foot pectoral arch, shoulder girdlethe bony arch formed by the collarbones and shoulder blades in humans haemal arch, hemal archa structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels neural arch, vertebral archa structure arising dorsally from a vertebral centrum and enclosing the spinal cord fallen arch, sunken archan instep flattened so the entire sole rests on the ground skeletal structure any structure created by the skeleton of an organism 5v form an arch or curve 2her back arches Syn|Hypo|Hyper arc, curve camber curve upward in the middle bend, flex form a curve 1adj (used of behavior or attitude) characteristic of those who treat others with condescension Syn condescending, patronising, patronizing superior of or characteristic of high rank or importance 2adj naughtily or annoyingly playful Syn impish, implike, mischievous, pixilated, prankish, puckish, wicked playful full of fun and high spirits 3adj expert in skulduggery an arch criminal Syn skilled having or showing or requiring special skill |
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