sickle

an implement for cutting grass, corn, etc., having a curved blade and a short handle

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

sickle

[′sik·əl]

(agriculture)

The cutting mechanism of a binder, reaper, or combine.

(design engineering)

A hand tool consisting of a hooked metal blade with a short handle, used for cutting grain or other agricultural products.

(textiles)

A hooked arm for guiding the thread in a spinning mule.

Sickle

[′sik·əl]

(astronomy)

A group of six stars in the constellation Leo that outline the head of the lion.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sickle

a hand implement consisting of a long, curved, slightly serrated blade and used for cutting grain. Sickles first appeared in the Neolithic and were initially used to cut wild plants. They were made of wood, bone, or clay and had a cutting edge consisting of small chips of flint, called microliths, set in a groove in a mounting. Sickles made entirely of flint date from the Aeneolithic. The first metal sickles, made of bronze, appeared in the Bronze Age. Iron sickles, which appeared in the early Iron Age, were initially small and slightly curved. Later the shapes of sickles changed, becoming larger and more curved. In the USSR the sickle has survived only as a tool for small private farm plots.

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References in periodicals archive

It said that representatives of the two French organisations met with the English-speaking partners of the project, including health professionals - pediatricians, nurses, midwives, obstetricians -, sickle cell associations and representatives of the Ministries of Health in Grenada and Antigua and Barbuda.

CARIBBEAN-HEALTH-New project to detect sickle cell in new born babies in OECS

"Vaccination at the right time is a good protection as it helps in improved immunity, which is important for sickle cell anaemia patients.

Vaccines drive to tackle sickle cell complications

Imara is focused on developing novel therapeutics for patients with sickle cell disease and other hemoglobinopathies.

Imara Closes a USD 63m Series B Cross-Over Financing

This descriptive study was conducted to determine the sickle cell trait frequency in patients referred to Heglig hospital in Western of Sothern Kordofan state between November 2008 to February 2009.

FREQUENCY OF SICKLE CELL ANAEMIA AND SICKLE CELL TRAIT IN PATIENTS REFERRED TO HEGLIG HOSPITAL IN WESTERN KORDOFAN STATE (SUDAN)

Department of State Health Services Sickle Cell Advisory Committee.

Sickle Cell Disease Awareness: Are You at Risk?

The researchers also found that in patients with sickle cell disease, immature red blood cells called reticulocytes are most likely to adhere to blood vessels.

All you need to know about sickle-cell disease

Sickle cell disease is a type of anemia that is most common among black people.

Funding needed for sickle cell research

On 7th July 2017 the FDA (Food and Drug Administration) in the United States approved the drug L-Glutamine (Trade name: Endari) for patients with sickle cell disease.3 The drug is a preparation of the amino acid L-Glutamine in oral powder form and is to be consumed after mixing in a beverage or soft food.

L-Glutamine approved for use in patients with sickle cell disease

Is the percentage of people in West and Central Africa who have the sickle cell trait.

Sickle cell disease (SCD) is the most common form of an inherited blood disorder

Sodium metabisulfite test was also positive showing sickle cells (Figure 1).

IMAGES IN CLINICAL MEDICINE

This fetal hemoglobin effectively counteracts the effects of the sickle mutation.

Sickle-Cell Patients See Hope in CRISPR: The disease may be among the first to be treated with the novel gene-diting tool