éclairci

Éclairci is a term derived from the French verb éclaircir, meaning to make clear or to thin out. In use, it can function as a past participle used as an adjective, or as a noun, and it appears in several technical fields with related but distinct meanings. The word shares its root with éclaircie, which more commonly denotes a clearing or break in a phenomenon.

In meteorology, éclairci (plural éclaircies) designates a temporary clearing in cloud cover. It refers to intervals of brighter weather between stretches of overcast skies. Phrases such as ciel éclairci or des éclaircies temporaires describe a sky that has partially cleared, allowing sunlight through.

In forestry and agriculture, éclairci refers to a thinning operation within a stand of trees. The goal is to reduce density to improve the growth, health, and quality of the remaining trees, as well as to enhance air circulation and light penetration. The process is commonly termed éclaircissement in more technical contexts, but éclairci is used in practical silvicultural notes to denote the thinning cut itself or its result.

In general usage, éclairci can describe any situation where something becomes clearer or more apparent after a period of obscurity, including figurative uses such as a sudden clarification in a discussion or a moment of insight following confusion.

Overall, éclairci is a versatile term tied to the idea of clearing or thinning, with meteorological and forestry applications being the predominant contexts in contemporary French.