plural of orbital index

(law) a name or sign used on products which corresponds to a specific geographical location or origin

plural of heat index

plural of indicative mood

(aviation) A two-letter indicator used in fare construction to indicate the basic routing that the fare applies to.

plural of misery index

(chemistry) A substance that exists in an oxidized and reduced forms, these forms having different colours, changing colour at a specific redox potential

A vote with no legal implication; a vote to test the prevalent mood in a given body of members

(rail transport) A panel attached to a colour light signal situated just before a junction, which when lit up indicates that a diverging route has been set for the next train.

plural of route indicator