>>190 関連

http://d.hatena.ne.jp/m-hiyama-memo/20110610/1307688106
檜山正幸のキマイラ飼育記 メモ編
2011-06-10(金) モノドロミーグラフとか
抜粋（モノドロミー（monodromy）の語源）
モノドロミー（monodromy）の語源は、run round なので、グルッと一周したときの量に形容詞として「モノドロミー」を付けるのは許されるでしょ。
似た(?)用語でホロノミー（holonomy）もあるけど、モノドロミーが先に思いついたのでモノドロミーを使う。

http://en.wikipedia.org/wiki/Monodromy
Monodromy
抜粋
In mathematics, monodromy is the study of how objects from mathematical analysis, algebraic topology and algebraic and differential geometry behave as they 'run round' a singularity.
As the name implies, the fundamental meaning of monodromy comes from 'running round singly'.
It is closely associated with covering maps and their degeneration into ramification;
the aspect giving rise to monodromy phenomena is that certain functions we may wish to define fail to be single-valued as we 'run round' a path encircling a singularity.
The failure of monodromy is best measured by defining a monodromy group: a group of transformations acting on the data that encodes what does happen as we 'run round'.