1. (noun) (anatomy) a natural hollow or sinus within the body

• cavity
• cavum

1. (noun) (anatomy) a natural hollow or sinus within the body

• abdomen
• abdominal cavity
• amniotic cavity
• antrum
• archenteron
• armpit
• axilla
• axillary cavity
• axillary fossa
• blastocele
• blastocoel
• blastocoele
• cleavage cavity
• segmentation cavity
• blind gut
• caecum
• cecum
• buccal cavity
• bursa omentalis
• lesser peritoneal cavity
• omental bursa
• celom
• celoma
• coelom
• chamber
• chest cavity
• thoracic cavity
• cloaca
• cranial cavity
• intracranial cavity
• cranial orbit
• eye socket
• orbit
• orbital cavity
• fossa
• pit
• greater peritoneal sac
• peritoneal cavity
• laryngopharynx
• locule
• loculus
• lumen
• mediastinum
• middle ear
• tympanic cavity
• tympanum
• nasal cavity
• nasopharynx
• oropharynx
• pelvic cavity
• pelvis
• renal pelvis
• pericardial cavity
• pericardial space
• pleural cavity
• pulp cavity
• sac
• sinus
• socket
• tubular cavity
• uterine cavity
• vacuole
• ventricle
• vestibule

1. (noun) (anatomy) a natural hollow or sinus within the body

• anatomical structure
• bodily structure
• body structure
• complex body part
• structure

1. (noun) (anatomy) a natural hollow or sinus within the body

• anatomy
• general anatomy