For example, a pitching moment is a vertical force applied at a distance forward or aft from the center of gravity of the aircraft, causing the aircraft to pitch up or down. Roll, pitch and yaw refer, in this context, to rotations about the respective axes starting from a defined equilibrium state. The equilibrium roll angle is known as wings level or zero bank angle, equivalent to a level heeling angle on a ship.
Definition. There are two types of modifiers in the English language: the adjective and the adverb. They have distinctly different roles, and we will examine each, in turn. First, let's look at the definition of each word. An adjective describes, or modifies a noun--a person, place, thing, or idea.
(See Examples and Observations, below.). Modifiers that appear before the head are called premodifiers. Modifiers that appear after the head are called postmodifiers. Modifiers may be either restrictive (essential to the meaning of a sentence) or nonrestrictive (additional but not essential elements in a sentence).See Examples and Observations below.Also see: 1  Modification.efinition. A word, phrase, or clause that functions as an adjective or adverb to provide additional information about another word or word group (called the head). Modifiers in English include adjectives, adverbs, demonstratives, possessive determiners, prepositional phrases, degree modifiers, and intensifiers.