Tatami

Aikido term: Mat

Tatami

A 畳 is a type of mat used as a flooring material in traditional Japanese-style rooms. Traditionally made of rice straw to form the core (though nowadays sometimes the core is composed of compressed wood chip boards or polystyrene foam), with a covering of woven soft rush (igusa) straw, tatami are made in standard sizes, with the length exactly t...
Found on http://en.wikipedia.org/wiki/Tatami

Tatami

[Japanese armour] Japanese tatami armour (畳胴具足), or tatami gusoku (Tatami, from Tatamu 畳む, `To fold`) and gusoku (meaning armour), was a type of lightweight portable folding Japanese armour worn during the feudal era of Japan by the samurai class and their foot soldiers (ashigaru). The Tatami dou (dō) (a folding type of chest a...
Found on http://en.wikipedia.org/wiki/Tatami_(Japanese_armour)

Tatami

A tatami is a 9 meter square mat of compressed straw with a tight canvas covering on which judo contests are held.
Found on http://www.probertencyclopaedia.com/browse/OT.HTM

tatami

rectangular mat used as a floor covering in Japanese houses. It consists of a thick straw base and a soft, finely woven rush cover with cloth ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/t/15

tatami

rice straw mat, about 6ft x 3ft
Found on http://www.encyclo.co.uk/local/20455
No exact match found