What's the adjective for elliptic? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs ellipse and ellipt which may be used as adjectives within certain contexts.
(mathematics) Of or pertaining to a broad field of mathematics that originates from the problem of calculating arc lengths of an ellipse.
(mathematics) That has coefficients satisfying a condition analogous to the condition for the general equation for a conic section to be of an ellipse.