observationally

comparative more observationally · superlative most observationally

1. In an observational way.

   However, before most of this was experimentally and observationally discovered, they were perhaps best known for their “almost unique” ability to squirt ink when harangued, creating a smokescreen before jetting off to safety.

   2017 August 9, Mark Carnall, “Why do cephalopods produce ink? And what's ink made of, anyway?”, in The Guardian, archived from the original on 15 Mar 2023