Related Clues:

• Membranous sac
• Abnormal body cavity
• Bag-like cavity
• Small growth
• Peloton member's extracted short clip for bag with fluid
• In part it's a convenient container for yolk
• ___ fly (R.B.I. producer)
• Onetime tribe of the Upper Midwest
• Anatomical container
• Bursa, e.g
• Queen ___ (bold chess move, for short)
• Vocal ___ (frog feature)
• Runner-advancing fly (Abbr.)
• Dermatology diagnosis, sometimes
• Risky chess move, informally