deficiency arch length - definition of deficiency arch length by the Free Online Dictionary, Thesaurus and Encyclopedia.

arch¹ (ärch)

1. A structure, especially one of masonry, forming the curved, pointed, or flat upper edge of an open space and supporting the weight above it, as in a bridge or doorway.

2. A structure, such as a freestanding monument, shaped like an inverted U.

3. A curve with the ends down and the middle up: the arch of a raised eyebrow.

4. Anatomy An organ or structure having a curved or bowlike appearance, especially either of two arched sections of the bony structure of the foot.

v. arched, arch·ing, arch·es

v.tr.

1. To provide with an arch: arch a passageway.

2. To cause to form an arch or similar curve.

3. To bend backward: The dancers alternately arched and hunched their backs.

4. To span: "the rude bridge that arched the flood" Ralph Waldo Emerson.

v.intr.

To form an arch or archlike curve: The high fly ball arched toward the stands.

[Middle English, from Old French arche, from Vulgar Latin *arca, from Latin arcus.]

arch¹

semicircular arch

A. keystone B. voussoirs C. springers D. imposts

arch ¹

Noun

1. a curved structure that spans an opening or supports a bridge or roof

2. something curved

3. the curved lower part of the foot

Verb

to form an arch [Latin arcus bow, arc]

arch ²

Adjective

1. knowing or superior

2. coyly playful: he gave an arch smile to indicate his pride [independent use of arch-]

archly adv

ThesaurusLegend: Synonyms Related Words Antonyms

Noun	1.	arch - a curved shape in the vertical plane that spans an opening curve, curved shape - the trace of a point whose direction of motion changes
	2.	arch - a curved bony structure supporting or enclosing organs (especially the inner sides of the feet) metatarsal arch - the short lateral arch formed by the heads of the metatarsals instep - the arch of the foot skeletal structure - any structure created by the skeleton of an organism pectoral arch, shoulder girdle - the bony arch formed by the collarbones and shoulder blades in humans haemal arch, hemal arch - a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels neural arch, vertebral arch - a structure arising dorsally from a vertebral centrum and enclosing the spinal cord
	3.	arch - a passageway under a curved masonry construction; "they built a triumphal arch to memorialize their victory" archway entrance, entranceway, entryway, entree, entry - something that provides access (to get in or get out); "they waited at the entrance to the garden"; "beggars waited just outside the entryway to the cathedral" wall - an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure; "the south wall had a small window"; "the walls were covered with pictures"
	4.	arch - (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it abutment arch - an arch supported by an abutment aqueduct - a conduit that resembles a bridge but carries water over a valley arcade, colonnade - a structure composed of a series of arches supported by columns bridge, span - a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc. broken arch - an arch with a gap at the apex; the gap is usually filled with some decoration camber arch - an 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 arch - an arch with mutually supporting voussoirs that has a straight horizontal extrados and intrados headstone, keystone, key - the central building block at the top of an arch or vault pier arch - an arch supported on piers pointed arch - an arch with a pointed apex; characteristic of Gothic architecture proscenium arch - the arch over the opening in the proscenium wall rampant arch - an arch whose support is higher on one side than on the other round arch - an arch formed in a continuous curve; characteristic of Roman architecture rowlock arch - an arch that is formed with more than one concentric row of voussoirs safety arch - an undecorated arch that is included in order to strengthen or support a construction scoinson arch, sconcheon arch - an arch that supports part of the wall segmental arch - a shallow arch; an arch that is less than a semicircle shouldered arch - an arch consisting of a horizontal lintel supported at each end by corbels that project into the aperture diminished arch, scheme arch, skeen arch, skene arch - an arch whose height is less than half its width skew arch - an arch whose jambs are not at right angles with the face springer, impost - the lowest stone in an arch -- from which it springs squinch - a small arch built across the interior angle of two walls (usually to support a spire) structure, construction - a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons" trimmer arch - an arch built between trimmers in a floor (to support the weight of a hearth) triumphal arch - a monumental archway; usually they are built to commemorate some notable victory four-centered arch, Tudor arch - a low elliptical or pointed arch; usually drawn from four centers voussoir - wedge-shaped stone building block used in constructing an arch or vault architecture - the discipline dealing with the principles of design and construction and ornamentation of fine buildings; "architecture and eloquence are mixed arts whose end is sometimes beauty and sometimes use"
Verb	1.	arch - form an arch or curve; "her back arches"; "her hips curve nicely" arc, curve camber - curve upward in the middle bend, flex - form a curve; "The stick does not bend"
Adj.	1.	arch - (used of behavior or attitude) characteristic of those who treat others with condescension condescending, patronising, patronizing superior - of or characteristic of high rank or importance; "a superior ruler"
	2.	arch - expert in skulduggery; "an arch criminal" skilled - having or showing or requiring special skill; "only the most skilled gymnasts make an Olympic team"; "a skilled surgeon has many years of training and experience"; "a skilled reconstruction of her damaged elbow"; "a skilled trade"
	3.	arch - naughtily or annoyingly playful; "teasing and worrying with impish laughter"; "a wicked prank" impish, implike, mischievous, pixilated, prankish, puckish, wicked playful - full of fun and high spirits; "playful children just let loose from school"