| ADI | (physics) occurring without loss or gain of heat |
|---|---|
| ADI | (thermodynamics) any process that occurs without gain or loss of heat |
| ADI | used in some classification systems for some genera of the family Polypodiaceae (or Pteridaceae) |
| ADI | cosmopolitan genus of ferns: maidenhair ferns |
| ADI | delicate endemic Bermudian fern with creeping rootstock |
| ADI | delicate maidenhair fern with slender shining black leaf stalks |
| ADI | hardy palmately branched North American fern with divergent recurved branches borne on lustrous dark reddish stipes |
| ADI | tropical American fern with broad pinnae |
| ADI | named for a country house in Barbados where it was discovered |
| ADI | (psychology) an urge to accept or approach a situation or an object |
| ADI | (psychology) characterized by acceptance or approach |
| ADI | a farewell remark |