an operational naval task force consisting of a variety of surface combatants designed to operate as a coordinated unit; subdivided into battle groups

(astronomy) The explosion of a star, which increases its absolute magnitude to typically a billion times that of our sun. Some leave only debris, while others fade to invisibility as neutron stars ...

(pathology) Lack of neuromuscular reflexes. A symptom associated with many neurological disorders.

present participle of revolutionise