Modifies a noun

• acid: However, it is classed as a nonessential amino acid, which means the body manufactures it from other amino acids.

• service: Attacks that disrupt nonessential services or that are mainly a costly nuisance would not.

• business: Strengthening the comfort nonessential business and small dealers are.

• number: HOW TO STAY YOUNG 1. Throw out nonessential numbers.

• travel: CDC first issued its strongest warning -- a travel advisory -- for Vietnam in March, suggesting that all but nonessential travel be postponed.

• information: If you like a story with nonessential information and an author that is entirely to verbose, then this book is for you.

Used with adjective complement

• lack: Also included are expression data relating to the efficiency of splicing relative to other processes in strains of yeast lacking nonessential splicing factors.