acorn

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acorn:

see oakoak,
any tree or shrub of the genus Quercus of the family Fagaceae (beech family). This complex genus includes as many as 600, found chiefly in north temperate zones and also in Polynesia. The more southerly species, ranging into the tropics, are usually evergreen.
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acorn

A small ornament in the shape of a nut of the oak tree; used in American Colonial architecture as a pendant, finial, carved on a panel, or as an element in the center of a broken pediment.
See also: Ornament
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

acorn

[′ā‚kȯrn]
(botany)
The nut of the oak tree, usually surrounded at the base by a woody involucre.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

acorn

acorn
A small ornament in the shape of a nut of the oak tree; sometimes used as a finial, pendant, or decorative element within a broken pediment, or as a decoration on a carved panel.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

acorn

used to symbolize the beginning of growth. [Pop. Culture: Misc.]
See: Growth

acorn

heraldic symbol of strength. [Heraldry: Jobes, 27]
Allusions—Cultural, Literary, Biblical, and Historical: A Thematic Dictionary. Copyright 2008 The Gale Group, Inc. All rights reserved.

acorn

the fruit of an oak tree, consisting of a smooth thick-walled nut in a woody scaly cuplike base
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005