costa

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Related to costa spuria: axial skeleton

costa

[′käs·tə]
(biology)
A rib or riblike structure.
(botany)
The midrib of a leaf.
(invertebrate zoology)
The anterior vein of an insect's wing.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

costa

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A fuselage frame.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved