My words are found in 'A Double Death on the Black Isle' by A.D. Scott
'Joanne had been meaning to call Patricia, but first she needed to don an armor-plated carapace of confidence to deal with her oldest friend.' pg. 17
1. Zoology A hard bony or chitinous outer covering, such as the fused dorsal plates of a turtle or the portion of the exoskeleton covering the head and thorax of a crustacean.
2. A protective, shell-like covering likened to that of a turtle or crustacean
'He knew that she saw herself as the chatelaine of all she surveyed.' pg. 128chat·e·laine n.
a. The mistress of a castle.
b. The mistress of a large, fashionable household.
2. A clasp or chain worn at the waist for holding keys, a purse, or a watch.
'But right now, he was needed; to Rob, nothing was sacrosanct if it meant a good story.' pg. 144
The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
Regarded as sacred and inviolable.