the partition separating the chest and abdominal cavities in mammals
a dividing membrane or thin partition, esp in a tube
a partition in a plant or the body or shell of an invertebrate animal
= Dutch cap
a device that limits the amount of light entering an optical system
a thin flexible disc that is free to vibrate, e.g. in an earphone
diaphragmatic /-fragʹmatik/ adj
[Middle English diafragma via late Latin from Greek diaphragma, from diaphrassein to barricade, from dia- + phrassein to enclose]