sickle

noun
sick·le | \ ˈsi-kəl \

Definition of sickle 

(Entry 1 of 3)

1 : an agricultural implement consisting of a curved metal blade with a short handle fitted on a tang

2 : the cutting mechanism (as of a reaper, combine, or mower) consisting of a bar with a series of cutting elements

sickle

adjective

Definition of sickle (Entry 2 of 3)

: having the form of a sickle blade : having a curve similar to that of a sickle blade the sickle moon

sickle

verb
sickled; sickling\ˈsi-k(ə-)liŋ \

Definition of sickle (Entry 3 of 3)

transitive verb

1 : to mow or reap with a sickle

2 : to change (a red blood cell) into a sickle cell

intransitive verb

: to change into a sickle cell the ability of red blood cells to sickle

Illustration of sickle

Illustration of sickle

Noun

sickle 1

In the meaning defined above

Examples of sickle in a Sentence

Recent Examples on the Web: Noun

Aliyana has sickle beta plus thalassemia, a form that is often considered milder. Cassie Owens, Philly.com, "This Bucks County teen isn't letting sickle cell stop her pageant dreams," 17 May 2018 This type of gene disruption — called non-homologous end joining — is being used in sickle-cell and thalassemia trials. Fox News, "Futuristic gene-editing technology may cause cancer," 13 June 2018 But advances in research over the last 10 or 20 years, Thompson said, have found that beyond decreased oxygen, the sickle shape can injure blood vessel walls in its flow, even leading to scarring. Cassie Owens, Philly.com, "This Bucks County teen isn't letting sickle cell stop her pageant dreams," 17 May 2018 At the ancient ruins of Megiddo in northern Israel, Dr. Finkelstein and his colleagues also discovered sickle blades used for harvesting grain, and an unusually high frequency of cattle bones. New York Times, "Faced With Drought, the Pharaohs Tried (and Failed) to Adapt," 30 Mar. 2018 Among drugs in late-stage development, Bluebird Bio ’s gene therapy for sickle-cell disease could involve a hospital stay of as long as six weeks. Jonathan D. Rockoff, WSJ, "The Million-Dollar Cancer Treatment: Who Will Pay?," 26 Apr. 2018 The clinic also tested blacks for sickle-cell anemia. Christine Willmsen, The Seattle Times, "Black Panther Party’s legacy to help sick, poor lives on at Seattle health clinic," 25 Apr. 2018 The sickle and hammer are part of all the group’s messaging. Matthew Martinez, star-telegram, "Univ. of Texas fountain hit with graffiti symbolizing ‘blood’ of assault survivors | Fort Worth Star-Telegram," 8 Mar. 2018 Some surgeries are brutally painful, as is trauma and many other medical conditions, such as sickle-cell anemia. Travis N. Rieder, Philly.com, "Is it wrong to ask your doctor for opioids?," 23 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sickle.' 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 sickle

Noun

before the 12th century, in the meaning defined at sense 1

Adjective

1688, in the meaning defined above

Verb

1922, in the meaning defined at transitive sense 1

History and Etymology for sickle

Noun

Middle English sikel, from Old English sicol, from Latin secula sickle, from secare to cut — more at saw

Keep scrolling for more

Learn More about sickle

Statistics for sickle

Look-up Popularity

Time Traveler for sickle

The first known use of sickle was before the 12th century

See more words from the same century

Keep scrolling for more

More Definitions for sickle

sickle

noun

English Language Learners Definition of sickle

: a tool with a curved metal blade attached to a short handle that is used for cutting grass, grain, etc.

sickle

noun
sick·le | \ ˈsi-kəl \

Kids Definition of sickle

: a tool with a sharp curved blade and a short handle used especially to cut grass and grain

sickle

noun
sick·le | \ ˈsik-əl \

Medical Definition of sickle 

(Entry 1 of 3)

: a dental scaler with a curved 3-sided point

sickle

adjective

Medical Definition of sickle (Entry 2 of 3)

: of, relating to, or characteristic of sickle cell anemia or sickle-cell trait sickle hemoglobin

sickle

verb
sickled; sickling\ˈsik-(ə-)liŋ \

Medical Definition of sickle (Entry 3 of 3)

transitive verb

: to change (a red blood cell) into a sickle cell

intransitive verb

: to undergo change into a sickle cell the ability of red blood cells to sickle

Keep scrolling for more

Comments on sickle

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

WORD OF THE DAY

to deposit or conceal in a hiding place

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Citation

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!