earliesttype
adjectiveUK /ˈɜːliɪst taɪp/
US /ˈɜːrliɪst taɪp/
The very first kind of something.
This is the earliesttype of bicycle ever made.
OTHER MEANINGS
2. The most ancient category of a group of things.
Scientists studied the earliesttype of fossil in the rock.
3. The first model or design of a product.
The museum shows the earliesttype of telephone.
4. The first sort of something to appear in history.
That was the earliesttype of writing people used.