# arcology

> English word · Noun · IPA /ɑːˈkɒl.ə.d͡ʒi/

## Definitions
1. Urban development theory proposed by Paolo Soleri involving three-dimensional building methods and efficient use of space and resources.
2. An extremely large building or complex, sufficient to maintain an internal ecology as well as an extremely high human population density.

## Etymology
Blend of architecture + ecology, coined by Italian architect Paolo Soleri in 1969.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/arcology