INFLECTION n.
The variation or change which words undergo to mark case, gender, number, comparison, tense, person, mood, voice, etc.
INSTRUMENTAL a.
the instrumental case. This is found in Sanskrit as a separate case, but in Greek it was merged into the dative, and in Latin into the ablative. In Old English it was a separate case, but has disappeared, leaving only a few anomalous forms. Instrumental errors, those errors in instrumental measurements, etc., which ari…
INTERNAL-COMBUSTION; INTERNAL-COMBUSTION ENGINE a.
ng to, any engine (called an Internal- combustion engine) in which the heat or pressure energy necessary to produce motion is developed in the engine cylinder, as by the explosion of a gas, and not in a separate chamber, as in a steam- engine boiler. The gas used may be a fixed gas, or one derived from alcohol, ether,…