noun
- A protein or any of a group of organic compounds containing nitrogen, found in all living cells and essential for life.
Usage: Also spelled 'protide'; somewhat archaic or technical term, largely replaced by 'protein' in modern usage
Examples
- Proteids are fundamental building blocks of muscle tissue.
- The diet must include adequate proteids for proper growth and development.
- Scientists in the early 20th century used the term proteid before protein became standard.
- Eggs are rich in proteids and other essential nutrients.