Bursicon

noun
a hormone, produced by the insect brain, that regulates processes associated with ecdysis, such as darkening of the cuticle

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Bursiform
pouch-shaped; saccate. Historical Examples Chambers’s Twentieth Century Dictionary (part 1 of 4: A-D) Various adjective shaped like a pouch or sac
Bursitis
inflammation of a bursa. Historical Examples Manual of Surgery Alexis Thomson and Alexander Miles noun inflammation of a bursa, esp one in the shoulder joint n. bursitis (bər-sī’tĭs) Inflammation of a bursa, most commonly of the shoulder. Symptoms include pain, tenderness, and limitation of motion. bursitis [(buhr-seye-tis)]
Bursolith
bursolith