plural of spinoidal

(obsolete, medicine) Hypochondriac (related to or affected by hypochondria). / (obsolete, anatomy) Hypochondriac (related to or located in the hypochondrium).

(informal) A minor automobile accident in which contact is made between the front of one vehicle and the rear of another.

(mathematics) Formally, given two partially ordered sets A and B, the order ≤ on the Cartesian product A × B such that (a,b) ≤ (a′,b′) if and only if a < a′ or (a = a′ and b ≤ b′).