Surrounding or lying adjacent all around something; situated around the borders or edges.
From Latin 'circum' (around) + 'adjacent' (Latin 'adjacens,' lying near). This compound adjective formed in English scholarly writing to describe things positioned on all sides.
This word appears in older geographical and botanical texts to describe the 'circumadjacent lands' around a city or the 'circumadjacent islands' around an archipelago. It's more precise than just saying 'surrounding,' but so formal it's almost disappeared.
Complete word intelligence in one call. Free tier — 50 lookups/day.