a measure of the velocity of one celestial body in orbit about another, equal to the area swept out per unit time by the vector joining the two bodies.
What Are Context Clues?What are context clues? Context clues are hints that an author gives to help define a difficult or unusual word within a book. The clue may appear within the same sentence as the word to which it refers or it may follow in the next sentence. Because most of our vocabulary is gained through reading, it is important that we are able to recognize and take …
What Are Gerunds?A gerund is a verb form that ends in -ing and functions as a noun or object in a sentence or phrase. Though a gerund may look like a verb, it doesn’t behave like one in a sentence. A gerund can act as the subject of a sentence, as the object of a preposition, or as the object of a verb. When a gerund has …
Origin of areal velocity
First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019