Architectural and Engineering Glossary

C

Chimney Tun

A chimney stack.

Chimney Waist

Same as chimney throat. 

Chimney Wing

Same as chimney cheek. 

China Grass Cloth

Same as grass cloth. 

China Sanitary Ware

Glazed,vitrified,sanitary ware.
 

China Wood Oil

See tung oil.

Chinese Blue

1.A pigment in the iron blue family.2.One type of Prussian blue.

Chinese Bond

Same as rat-trap bond.

Chinese Fret

A lattice pattern of Chinese motif described under Chinese Chippendale.

Chinese Lattice

A combination of horizontal,vertical,and diagonal lines,slats,or bars,that form a geometric pattern,as in Chinese Chippendale.

Chinese White

A paint using zinc oxide as the principal pigment.

Chink

In a wall,a crack or fissure of greater length than breadth.

Chinking Board

A board used to cover chinking in an exterior wall.

Chinoiserie

A Western European and English architectural and decorative fashion employing Chinese ornamentation and structural elements,particularly in 18th cent.Rococo design.

Chip

A broken fragment of marble or other mineral aggregate,screened to a specified size.

Chip Ax

A small ax for chipping timber or stone into shape.

Chip Carving

Hand decorating a wood surface by slicing away chips,forming incised geometric patterns.

Chip Cracks,eggshelling

Same as checking except that the edges of the cracks are raised or pulled away from the plaster base,resulting in  the loss of bond.

Chipboard

See particleboard.

Chipped Glass

See chunk glass.

Chipped Grain

A wood surface from which small bits have been ripped as a result of defective planing or machine work.

Chipper

See paving breaker.

Chipper Chain Saw

A chain saw whose cutting teeth are shaped so as to permit curved cuts. 

Chipping

Treatment of a hardened concrete surface by chiseling.
 

Chipping Resistance

Of a paint coating (or the like),the ability of one or more coats to resist the removal of any portion of its surface as a result of impacts.

Chisel

A hand tool with a cutting edge on one end of a metal blade (usually steel);used in dressing,shaping,or working wood,stone,metal,etc.usually driven with a hammer or mallet.Also see cold chisel and wood chisel.

Chisel Bar

A heavy,steel hand bar with a chisel edge on one end.

Chisel Chain Saw

A chain saw whose cutting teeth are shaped so that it can only make straight cuts.

Chisel Knife

A knife with a square edge,usually 11⁄2 in.(3.8 cm) or less in width,used to scrape off paint or wallpaper in areas where a wider-edged stripping knife would not be suitable.

Chisel Pattern

A pattern of shingles or tiles on  a roof in which the bottom corners of the shingles or tiles are clipped at an angle.

Chlorinated Paraffin Wax

A viscous liquid or solid used as a plasticizer or in flame retardant paints.

Chock

A wedge or block used to prevent an object from moving.

Choir

That part of a church,between the sanctuary and the nave,usually occupied by a group of singers.

Choir Aisle

An aisle parallel to and adjoining the choir.

Choir Loft

A balcony choir area.

Choir Rail

A railing separating the choir from  the nave or the crossing.

Choir Screen,choir Enclosure

A screen wall,railing,or partition of any type dividing the choir from the nave,aisles, and crossing.

Choir Stall

A seat with arms and a high back,often covered with a canopy,for clergy and singers. 

Choir Wall

A wall between piers and under anarcade screening the choir from the aisles.
 

Choltry

Same as choultry.

Chomper

Same as split face machine.

Choneion

In the Greek Orthodox church,a piscina.
 

Choragium

In ancient Greece and Rome,a large space behind a theater stage where the chorus rehearsed and where stage properties were kept.

Choraula

Rehearsal room in a church for a choir. 

Chord

1.A principal member of a truss which extends from one end to the other,primarily to resist bending;usually one of a pair of such members.2.The straight line between two points on a curve.3.The span of an arch.
 

Chord Modulus

See modulus of elasticity.

Choultry

1.A caravansary.2.In India,a large village hall or place of assembly.

Chrismatory

A niche close to a church font which holds the consecrated oil for baptism.

Chrismon

Christ symbol composed of the first two letters of the Greek word for Christ,chi and rho;a “Christogram.”

Christian Door

In Colonial New England,the paneled front door of a house in which the stiles and rails of the door form a pattern suggestive of a cross,the two lower stiles and rails form a pattern vaguely suggestive of an open book,representing the Bible.Also called a cross and bible door.