In a cirrose manner; with characteristics of or in the manner of having cirri or being coiled and curl-like.
From cirrose (adjective) + -ly (adverbial suffix). Converts the adjective into an adverb describing how something exhibits cirrose qualities.
This adverb is so specialized it's rarely used outside scientific literature, but it perfectly describes how a barnacle 'cirrosely' extends its feeding arms into the water column!
Complete word intelligence in one call. Free tier — 50 lookups/day.