protohuman

adjective

pro·​to·​hu·​man ˌprō-tō-ˈhyü-mən How to pronounce protohuman (audio)
-ˈyü-
: of, relating to, or resembling an early hominid (such as an australopithecine)
protohuman noun

Word History

First Known Use

circa 1909, in the meaning defined above

Time Traveler
The first known use of protohuman was circa 1909

Rhymes for protohuman

See All Rhymes for protohuman

Browse Nearby Words

proto-Hittite
protohuman
Protohydra
See all Nearby Words

Cite this Entry

“Protohuman.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protohuman. Accessed 30 Oct. 2025.

Copy Citation

Share

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

'Affect' vs. 'Effect'

Plural and Possessive Names: A Guide

Using Bullet Points ( • )

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

The Difference Between 'i.e.' and 'e.g.'
See More

Popular in Wordplay

See More

8 Real (and Perceived) Redundant Words

17 Words for Dog Breeds

Ten More Words from Taylor Swift Songs

Why do we 'bury the lede?'

'Za' and 9 Other Words to Help You Win at SCRABBLE
See More

Popular

See More

'Affect' vs. 'Effect'

8 Real (and Perceived) Redundant Words

17 Words for Dog Breeds
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
different halloween monsters in silhouette
A Monstrous Vocab Quiz Words That Go Bump in the Night
See All