Exoskeleton
[1] external skeleton, any tough, structural body armor made of chitin or analogous material, for muscle attachment, usually (e.g. Arthropods, Limners) segmented.
[2] one-person protective armour, usually powered and sealed, used for exploration in hostile planetary environments, or as protection from kinetic and beam weapons by infantry or other military or paramilitary combatants.
[3] strong, flexible or inflexible, epidermal modification or augment, favoured by a number of tweak and bioborg clades, whether for protection, environmental adaptation, peer status, or (more rarely) intimidation (the non-offensive wearable augment is the exoskeleton bodysuit).
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