A perfect standard of beauty, intellect etc., or a standard of excellence to aim at.
A subsemigroup with the property that if any semigroup element outside of it is added to any one of its members, the result must lie outside of it.
A subring closed under multiplication by its containing ring.
A non-empty lower set (of a partially ordered set) which is closed under binary suprema (a.k.a. joins).
A collection of sets, considered small or negligible, such that every subset of each member and the union of any two members are also members of the collection.
A Lie subalgebra (subspace that is closed under the Lie bracket) 𝖍 of a given Lie algebra 𝖌 such that the Lie bracket [𝖌,𝖍] is a subset of 𝖍.
Not actually present, but considered as present when limits at infinity are included.
Optimal; being the best possibility.
Existing only in the mind; conceptual, imaginary.
Pertaining to ideas, or to a given idea.
Perfect, flawless, having no defects.
Teaching or relating to the doctrine of idealism.
A person of lower rank, stature, or ability to another.
An inferior letter, figure, or symbol.
Nearer to the Sun than the Earth is.
(of a court or tribunal) Susceptible to having its decisions overturned by a higher court.
Lower in rank, status, or quality.
On the side of a flower which is next to the bract.
Situated further below (another part of the body), a direction that in humans corresponds to caudad.
Situated in a relatively low posterior or ventral position in a quadrupedal body.
Situated below some other organ (said of a calyx when free from the ovary, and therefore below it, or of an ovary with an adherent and therefore inferior calyx).
Of low rank, standard or quality.
Denoting goods or services which are in greater demand during a recession than in a boom, for example second-hand clothes.
Below the horizon.
Printed in subscript.