1. the living contents of a plant cell, consisting of the cytoplasm and nucleus but excluding the cell wall
Usage: biology
2. an original model or type after which other similar things are patterned
Usage: formal

Examples

• Scientists isolated the protoplast by removing the cell wall with enzymes.
• The protoplast contains all the essential components for cellular metabolism.
• Researchers can fuse protoplasts from different plant species to create hybrids.
• The protoplast was carefully extracted for genetic modification experiments.
• This ancient sculpture served as the protoplast for later artistic works.
• The original design became the protoplast for all subsequent models.