Definition, Meaning & Synonyms
proto
prefix
/ˈproʊtoʊ/
Definition
A prefix meaning ‘first’ or ‘foremost’, used to indicate the primary or original form of something.
Examples
- Prototype – the first model of something from which others are developed.
- Protoplasm – the living substance inside a cell, typically consisting of cytoplasm and a nucleus.
- Proton – a positively charged particle found in the nucleus of an atom, considered the first building block of matter.
Meaning
‘Proto’ is used to describe something that is the earliest version or model from which others are derived.
Synonyms
- First
- Original
- Primary
