primary structure

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Related to Primary structure of proteins: Secondary structure of proteins, Tertiary structure of proteins

primary structure

[′prī‚mer·ē ′strək·chər]
(aerospace engineering)
The main framework, of an aircraft including fittings and attachments; any structural member whose failure would seriously impair the safety of the missile is a part of the primary structure.
(biochemistry)
The sequence of amino acids in the molecule of a protein or a peptide.
(geology)
A structure, in an igneous rock, that formed at the same time as the rock, but before its final consolidation.
(organic chemistry)
The chemical structure of a polymer chain.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

primary structure

Those structures of the airplane whose failure would seriously endanger the safety of the airplane. It includes the fuselage, wings, control surfaces, and engine mounts.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved