A group, cluster or collection of things occurring at the same time.
Tin ore prepared for smelting.
The lashing end of a whip.
A plant, especially a cereal, grown to be harvested as food, livestock fodder, or fuel or for any other economic purpose.
A photograph or other image that has been reduced by removing the outer parts.
The foliate part of a finial.
The head of a flower, especially when picked; an ear of corn; the top branches of a tree.
An entire short whip, especially as used in horse-riding; a riding crop.
An outcrop of a vein or seam at the surface.
An entire oxhide.
A rocky outcrop.
A pouch-like part of the alimentary tract of some birds (and some other animals), used to store food before digestion or for regurgitation; a craw.
A short haircut.
The natural production for a specific year, particularly of plants.
A group of vesicles at the same stage of development in a disease.
The act of cropping.
To remove the outer parts of a photograph or other image, typically in order to frame the subject better.
To remove the top end of something, especially a plant.
To cause to bear a crop.
To beat with a crop, or riding-whip.
To yield harvest.
To mow, reap or gather.
To cut (especially hair or an animal's tail or ears) short.
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 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 perfect standard of beauty, intellect etc., or a standard of excellence to aim at.
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.