clap Copy link Outline I. Of the handsII. Of thunder • clap, clapping: I. Of the hands: plausus, ūs: palm brought in contact with palm produces a c., palma cum palma collata plausum facit, Sen.: v. FLAPPING; applause. II. Of thunder: frăgor, ōris, m.: coelestis f., Quint.: a loud c. of thunder, gravis f., Ov. (In other senses the word has now become obsolete or vulgar: v. blow, stroke.)