Definition of "ravin"

Now, if ye hear the bruit of death or wounds,Give not yourselves o'ermuch to shriek and scream,For Ares ravins upon human flesh.

1908, “The Seven Against Thebes”, in Edmund Doidge Anderson Morshead, transl., Four Plays of Aeschylus, page 124

Tho' Nature, red in tooth and claw With ravine, shriek'd against his creed

1850, [Alfred, Lord Tennyson], In Memoriam, London: Edward Moxon, […], (please specify |part=Prologue or Rpilogue, or |canto=I to CXXIX)

Better 'twere I met the ravin lion when he roared With sharp constraint of hunger;

c. 1604–1605 (date written), William Shakespeare, “All’s Well, that Ends Well”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act III, scene ii], line 117