plural of signal indication

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

plural of geographical indication

(grammar) The mood of a verb used in ordinary, factual, or objective statements.

(chemistry) An acid-base indicator.

(aviation) An instrument that displays an aircraft's current airspeed.

(chemistry) any substance used to classify another, often by changing colour

(aviation, UK, military) An instrument that displays attitude of an aircraft in pitch and roll.

The imperfect tense in the indicative mood

(grammar) The present tense in the indicative mood.