Alteration

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alteration

[‚ȯl·tə′rā·shən]
(graphic arts)
In printing composition, a change that is made in typeset copy.
(petrology)
A change in a rock's mineral composition.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Alteration

A term in the building code referring to any change in a structure which does not increase any of its exterior dimensions, or any modification in construction or grade of occupancy.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

alteration

Construction in a building which may change the structural parts, mechanical equipment, or location of openings, but does not increase the overall area of dimensions of the building.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
This is a good time to remind the student that the altered tone, (the raised seventh degree) in the harmonic form, came about because, over time, the human ear came to prefer the sound of the semitone occurring between degrees seven and eight, but minor key signatures do not reflect the altered seventh tone.
The final seven chapters cover more open voicings that eventually include extension and altered tones. Each chapter has a practice section with clear assignments and original songs illustrating concepts presented in each chapter.