protogene

noun

pro·​to·​gene

ˈprōtə+ˌ-

1

: a dominant gene or factor

2

[International Scientific Vocabulary, from New Latin protogenes primeval, firstborn, from Greek prōtogenēs, from prōt- prot- + -genēs born] : a hypothetical mutable primary unit that is capable of reduplication, is held to have differentiated from nonliving matter, and is regarded as a precursor of living beings

Word History

Etymology

prot- + gene

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now