IPA: /ˈproʊtaɪl/
KK: /ˈprōˌtīl/
A theoretical basic substance thought to be the source of all chemical elements and subatomic particles.
Scientists once believed that protyle was the fundamental building block of matter.
Protyle is formed from the prefix "pro-" (meaning before or in front of) and the root "tyle" (derived from the Greek "tylos", meaning a type or kind). The word refers to a hypothetical substance that is considered to be the fundamental type or precursor of all matter.
Think of 'pro-' meaning 'before' and 'tyle' relating to a 'type' — this helps you remember that 'protyle' refers to a fundamental type of matter.