/od, ohd/ , n.
a hypothetical force formerly held to pervade all nature and to manifest itself in magnetism, mesmerism, chemical action, etc.
Also, odyl, odyle .
[ 1840-50; arbitrary name coined by Karl von Reichenbach (1788-1869), German scientist ]
1. on demand.
2. outside diameter.
3. outside dimensions.
4. overdraft.
5. overdrawn.