myria-, myrio-, myri-

(Greek: ten thousand; very numerous, countless)

A combining form meaning "10,000", used especially, in the names of some metric units equal to 10,000 of the unit denoted by the base word; such as, myriagram; myriameter; however, it is not in official use in the International System of Units.

myriorama, Myriorama (s) (noun); myrioramas, Myrioramas (pl)
A picture made up of several smaller pictures which can be arranged to construct many varieties of scenes which can be formed to produce a great variety of scenes or landscapes.
myrioscope (s) (noun), myrioscopes (pl)
A form of kaleidoscope: "A kaleidoscope is an instrument invented by Sir David Brewster, which contains loose fragments of colored glass, etc. that reflects surfaces which are arranged so that changes of position exhibit its contents in an endless variety of beautiful colors and symmetrical forms."
myriospored (adjective)
A reference to an extremely great number of spores.
myriosporous (adjective)
Characterized by having very numerous spores.
myriotheism (s) (noun), myriotheisms (pl)
The worshiping of or believing in more than one deity (god), usually many deities: "Myriotheism and polytheism both refer to the worship of many gods."
myriotheist (s) (noun), myriotheists (pl)
Someone who believes in, or maintains the doctrine of, a multitude of gods.