(idiomatic) Good and important enough for one to spend time, effort, or money on.

simple past tense of go home

(pharmacology) A COX-2 inhibitor C₁₇H₁₄O₄S (trademark Vioxx) used to relieve the signs and symptoms of osteoarthritis and rheumatoid arthritis, to manage acute pain in adults, and to treat primary ...

Misspelling of usefulness.