放物線

Etymology
Appears in Japanese in 1872 in the, a Japanese translation by (Fukuda Riken) and  of the 1851 book Elements of Analytical Geometry and of the Differential and Integral Calculus by. According to the foreword, the translators referenced an earlier Chinese translation from 1859, so the term likely derives originally from (see that entry for further details).

According to other Japanese sources,   analyzed as a compound of. See also related term.

Note the shift from earlier spelling, now considered an archaic alternative, to in modern usage. .

Noun

 * 1)  a parabola