a. Of, pertaining to, or in the style of, Shakespeare or his works. [ Written also Shakespearian, Shakspearean, Shakspearian, Shaksperean, Shaksperian.etc. ] [ 1913 Webster ]
(n) a sonnet consisting three quatrains and a concluding couplet in iambic pentameter with the rhyme pattern abab cdcd efef gg, Syn. English sonnet, Elizabethan sonnet