Relating to or resembling spiders; having spider-like qualities or belonging to the spider group.
From 'aranea' plus the adjective suffix '-in,' used to form descriptive adjectives in scientific nomenclature. This provides an alternative adjectival form to 'araneoid' or 'arachnoid.'
The English language borrowed '-in' from Latin to make adjectives, and chemists love it too—'protein,' 'melanin,' 'serotonin'—all following the same pattern that scientists used to describe anything 'aranein'!
Complete word intelligence in one call. Free tier — 50 lookups/day.