Lightwells

Part of speech: noun

Definitions

1. Architectural features designed to bring natural illumination into interior spaces by creating vertical shafts or open courtyards ; structural openings that allow daylight to penetrate lower floors or basements within buildings ; elements incorporated into building designs to enhance lighting and ventilation by channeling sunlight into enclosed areas
2. Spaces or shafts intentionally left open within a building to provide daylight and air circulation to rooms without exterior windows ; construction details used to improve natural light conditions for interior rooms by providing vertical access to the sky ; design components that admit sunlight into deep areas of buildings, often through shafts or open pits
3. Vertical openings or courtyards integrated into architectural plans to admit daylight and air to lower or interior rooms ; intentional gaps in building mass allowing natural illumination and airflow to reach spaces otherwise blocked by surrounding structures ; structural voids that enhance interior light levels and ventilation through exposure to the sky or exterior environment

Etymology: "Lightwells" is the plural of "lightwell", a compound formed from "light" and "well". Both parts are very old English words: "light" descends from Old English "lēoht", and "well" from Old English "wel", a word for a spring or source of water that has come down through the same Germanic stock. The idea behind the compound is straightforward, since a lightwell is a shaft that channels daylight downward into spaces that would otherwise sit in darkness, much as a water well draws up from below. Because the word is built transparently from two everyday elements, it needed no coining or borrowing from another language. A reader who has never seen the word can work out its meaning from its parts, which is typical of compounds formed in English from native roots.

Synonyms: light shafts, light courts, air shafts, courtyards