Myr"i*ad (?), n. [Gr. , , fr. numberless, pl. ten thousand: cf. F. myriade.]
1.
The number of ten thousand; ten thousand persons or things.
2.
An immense number; a very great many; an indefinitely large number.
© Webster 1913.
Myr"i*ad, a.
Consisting of a very great, but indefinite, number; as, myriad stars.
© Webster 1913.