concrete
Real, actual, tangible.
Example
“Fuzzy videotapes and distorted sound recordings are not concrete evidence that Bigfoot exists.”
Other meanings
Analogous to the categories of algebraic objects which category theory was created to generalize, in the sense of having objects which can be thought of as sets equipped with some additional structure. Formally, equipped with a faithful functor to the category of sets.
Equipped with a faithful functor to X (called a base category), in which case C is called a concrete category over X.
Related words
- concrete canyon
- concrete cutter
- concrete jungle
- concrete mixer
- concrete number
- concrete noun
- concretion
- reinforced concrete
- shotcrete
- asphalt concrete
- Cascade concrete
- cast in concrete
Word history
From Latin "concrētus".
Where this comes from
This definition is adapted from “concrete” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.