For example, let's say I see a homeless man and woman eating scraps of food next to a garbage fire to keep warm and I say to my friend, "Must be date night" (with undertones of "This is a sad world"). ...
I've noticed that biological scientists tend to use nouns as adjectives when detailing experiments both in writing and in speech. Examples: The experiment was performed "in monkey cortex" instead ...
"Informative" is the adjective form of "information". What's the adjective form of "data"/"datum"?