1. Performing functions similar to those performed by lungs

See also: lung

• identity card
• identity crisis
• identity element
• identity matrix
• identity operator
• identity theft
• identity verification
• ideogram
• ideograph
• ideographic
• ideographically
• ideography
• ideologic
• ideological
• ideological barrier
• ideologically
• ideologist
• ideologue
• ideology
• ides
• idesia
• Idesia polycarpa
• IDF
• idioblast
• idiocy