Mȳr'i-ad, n.

n. [Gr. μυριάς, μυριάδος, from μυρίος, numberless, pl. μύριοι, ten thousand, allied to Ir. & Gael. mór, W. mawr, great, big, many, Ir. & Gael. móran, a great number, multitude, many; Fr. myriade, It. miriade, Pr. miri, W. myryad, infinity, myriad.]

1. The number of ten thousand.
2. An immense number; a very great many; an indefinitely large number.