[lem.nis.cate] n [NL lemniscata, fr. fem. of L lemniscatus with hanging ribbons, fr. lemniscus] (ca. 1781): a figure-eight shaped curve whose equation in polar coordinates is the square of the radius vector r equated to a constant that is squared and then multiplied by the cosine of twice the angle
LEMNISCATE
Meaning of LEMNISCATE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012