Lagrangian point
Concise Oxford English Dictionary © 2008 Oxford University Press:
Lagrangian point /ləˈgrɒ̃ʒɪən/
▶noun Astronomy each of five points in the plane of orbit of one body around another at which a small third body can remain stationary with respect to the others.
– origin C19: named after the Italian-born French mathematician Joseph Louis Lagrange.
'Lagrangian point' also found in these Oxford entries:
