Japanese edit

For pronunciation and definitions of まるた – see the following entry.
丸太
[noun] [from 1633] a log: unsawn lumber (UK) or timber (US), a section of a tree cut to a length and with the bark removed, but otherwise round and unfinished
[noun] [from 1697] alternate name for the 似鯉(にごい) (nigoi) fish (Hemibarbus barbus); more commonly known as ニゴイ (nigoi)
[noun] [from ???] the Pacific redfin (Tribolodon brandtii); more commonly known as マルタウグイ (maruta ugui)
[noun] [from circa 1687] (historical, slang) during the Edo period, derogatory term for an unlicensed prostitute dressed as a Buddhist nun as a form of disguise from the authorities (from the way the shaven head looks a bit like a debarked log, and from the way that they both roll around)
[noun] [from 1937] (historical) human test subjects of Unit 731
Alternative spelling
まろた
(This term, まるた, is the hiragana spelling of the above term.)
For a list of all kanji read as まるた, see Category:Japanese kanji read as まるた.)