cobble

cobble

1. short for cobblestone

2. Geology a rock fragment, often rounded, with a diameter of 64--256 mm and thus smaller than a boulder but larger than a pebble

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

cobble

Stone that is smaller than a boulder but larger than gravel. See also: Stone

Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

cobble

[′käb·əl]

(geology)

A rock fragment larger than a pebble and smaller than a boulder, having a diameter in the range of 64-256 millimeters (2.5-10.1 inches), somewhat rounded or otherwise modified by abrasion in the course of transport.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

cobble, cobblestone

1.A rock fragment between 2 ½ and 10 in. (64 and 256 mm) in diameter, used for rough paving, walls, and foundations.

2. Coarse aggregate for concrete, having a nominal size in the range 3 to 6 in. (75 to 150 mm).

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.