-al

toroidal (adj): in the shape of a torus; donut-shaped. tor-oid-al. From the Cosmology episode of Ologies.

916px-Simple_Torus.svg.png
torus (Yassine Mrabet, Wikimedia Commons)

monomial (adj): an algebraic expression consisting of one term, the atomic unit of which polynomials are made. Contrasted with a binomial, trinomial, etc. Variant: mononomial. Unclear whether the -al is actually separable; the OED lists the etyma as mono– ‘one’ and nomial.  Came up in a discussion of this shader; calculating the distance to an ellipse requires solving a 4th-degree equation (quartic polynomial); the solution allows the polynomial to be simplified into the product of  a set of monomials.

galaxial (adj): Having to do with a galaxy. Galaxy-al. From Ologies.

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