(mathematics, mathematical analysis) The alternating sum of the Dirichlet series expansion of the Riemann zeta function: 𝜂(s)=∑ₙ₌₁ ᪲(-1)ⁿ⁻¹/nˢ=1/(1ˢ)-1/(2ˢ)+1/(3ˢ)-1/(4ˢ)+⋯.

A fun-loving person

(mathematics) A function.

(vulgar) A dismissive expression of great indifference or nonchalance. / (vulgar) An expression of frustration.

(informal) Smartly or fancily dressed, especially in the uniform of a particular profession (soldier, royal servant, actor, etc).

Synonym of Gabor atom

(nautical) Full of wind; used of sails when close-hauled.

Alternative form of fuckmeat

present participle of fuck around

present participle of fuck with