What is "alexandrines"

Usage examples of "alexandrines".

However, I confess that he thinks he has imitated the French Alexandrines, and his preface made me explode with laughter.

Twenty thousand long Alexandrines are filled with admirable descriptions of scenery, natural productions, and historical events, but how many of us in these days have time to read and inwardly digest twenty thousand Alexandrine verses?

Had the long stanzas, bound by so many interwoven links of rhyme, ending in long Alexandrines, the long cantos, the lingering sweetness long drawn out through so many unended books, begun to weary her at last?