primary root

noun

Definition of primary root

: the root of a plant that develops first and originates from the radicle — see seedling illustration

Examples of primary root in a Sentence

Recent Examples on the Web Poor and shallow trenching techniques and use of ice-rich backfill material combined with the absence of erosion control measures were the primary root causes. Larry Persily, Anchorage Daily News, "Analysis: State awaits final EIS after answering Alaska LNG questions from federal regulators," 8 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'primary root.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of primary root

1877, in the meaning defined above

Keep scrolling for more

Learn More about primary root

Time Traveler for primary root

Time Traveler

The first known use of primary root was in 1877

See more words from the same year

Statistics for primary root

Cite this Entry

“Primary root.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/primary%20root. Accessed 16 Jul. 2020.

Comments on primary root

What made you want to look up primary root? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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