erec·​tor | \ i-ˈrek-tər \

Definition of erector

 (Entry 1 of 2)

: one that erects especially : a muscle that raises or keeps a part erect



Definition of Erector (Entry 2 of 2)

used for a metal toy construction set

Examples of erector in a Sentence

Recent Examples on the Web: Noun

Deadlifts already work the posterior chain, or the muscles at the rear of the body like the hamstrings, gluteus maximus, trapezius, posterior deltoids, and erector spinae. Leah Prinzivalli, SELF, "Why the Deficit Deadlift Is a Great Modification for Beginners," 5 Dec. 2018 Earlier this month, the company tweeted that its transporter erector launcher was en route to Kodiak. Eric Berger, Ars Technica, "Rocket Report: Small sat market surging, Proton dying, Falcon Heavy certified," 29 June 2018 But when the focus of bending is switched to the ankles, those erector muscles aren't the major support. Sandee Lamotte, CNN, "How Michael Jackson's tilt defied gravity," 22 May 2018 Ivanka has put down her erector sets and now has an official role in her father’s White House. Sam Dangremond, Town & Country, "How Born Rich Launched Ivanka Trump and Burned Nearly Everyone Else," 10 May 2017 Unlike other missiles that were paraded on their transporter-erector-launcher vehicles, the KN-20 was paraded on the back of a flatbed truck. Kyle Mizokami, Popular Mechanics, "Here's the Play-By-Play of North Korea's Pre-Olympics Missile Parade," 8 Feb. 2018 The deep core muscles, called the quadratus lumborum, psoas major, external oblique, and the deep fascicles erector spinae, attach directly to the lumbar vertebrae, and function primarily to stabilize the lumbar spine. David Becker,, "Training for Broad Street Run? Here's how to avoid back pain," 28 Feb. 2018 Participants at the high school level get an erector-set style package that allows them to build a robot to their specific design. Jennifer Bolton, Houston Chronicle, "Clear Brook team triumphs in regional robot battle in Friendswood," 27 Feb. 2018 The rocket exploded without warning in a tremendous blast that destroyed the booster, its payload and the rocket's transporter erector. William Harwood, CBS News, "SpaceX to resume launches from rebuilt pad," 8 Dec. 2017

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

See More

First Known Use of erector


1538, in the meaning defined above

Keep scrolling for more

Learn More about erector

Dictionary Entries near erector


erection tower



E region



Statistics for erector

Last Updated

21 Dec 2018

Look-up Popularity

Time Traveler for erector

The first known use of erector was in 1538

See more words from the same year

Keep scrolling for more

More Definitions for erector


erec·​tor | \ i-ˈrek-tər \

Medical Definition of erector

: a muscle that raises or keeps a part erect

called also arrector

More from Merriam-Webster on erector

Rhyming Dictionary: Words that rhyme with erector

Comments on erector

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


someone who never drinks alcohol

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

Word Winder's CrossWinder

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


Love words? Need even more definitions?

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