In a manner characteristic of or pertaining to hemihedral crystal forms.
Adverbial form of 'hemihedral,' formed with the suffix '-ally' to indicate a manner or way of being, common in scientific terminology since the 19th century.
This word is rarely used outside specialized mineralogy circles, but when a scientist describes a crystal as forming 'hemihedrally,' they're painting a precise picture of how nature compromised on symmetry—a beautiful example of how adverbs let us describe the 'how' of scientific processes.
Complete word intelligence in one call. Free tier — 50 lookups/day.