Definition of Castor

1. Noun. A multiple star with 6 components; second brightest in Gemini; close to Pollux.

Exact synonyms: Alpha Geminorum
Group relationships: Gemini
Generic synonyms: Multiple Star

2. Noun. A shaker with a perforated top for sprinkling powdered sugar.
Exact synonyms: Caster
Generic synonyms: Shaker

3. Noun. A pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable.
Exact synonyms: Caster
Generic synonyms: Roller

4. Noun. A hat made with the fur of a beaver (or similar material).
Exact synonyms: Beaver
Generic synonyms: Fur Hat

5. Noun. Type genus of the Castoridae: beavers.
Exact synonyms: Genus Castor
Generic synonyms: Mammal Genus
Group relationships: Castoridae, Family Castoridae
Member holonyms: Beaver

Definition of Castor

1. n. A genus of rodents, including the beaver. See Beaver.

2. n. See Caster, a small wheel.

3. n. the northernmost of the two bright stars in the constellation Gemini, the other being Pollux.

4. n. A variety of the mineral called petalite, from Elba.

Definition of Castor

1. Proper noun. (Greek mythology) One of the Dioscuri ¹

2. Proper noun. (star) A double star in the constellation Gemini; alpha (?) Geminorum. ¹

3. Noun. A pivoting roller attached to the bottom of furniture to allow it to be moved. ¹

4. Noun. A hat made from the fur of the beaver. ¹

5. Noun. A caster; a container with perforated cap for sprinkling (e.g. ''pepper-castor''). ¹

¹ Source: wiktionary.com

Definition of Castor

1. caster [n -S] - See also: caster

Lexicographical Neighbors of Castor

Castile
Castile and León
Castile soap
Castilian
Castilians
Castilla
Castilleia
Castilleja
Castilleja chromosa
Castilleja miniata
Castilleja sessiliflora
Castilleja sulphurea
Castle's intrinsic factor
Castlegregory
Castleman's disease
Castor
Castor canadensis
Castor fiber
Castoridae
Castoroides
Castries
Castro
Castroism
Castrophile
Castrophiles
Casualty Care Research Center
Casuaridae
Casuariiformes
Casuarina equisetfolia
Casuarinaceae

Literary usage of Castor

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the American Chemical Society by American Chemical Society (1912)
"The lipase present in castor beans was chosen as most suitable for the present work. The lipase preparation used in the experiments was prepared as follows: ..."

2. The Analyst (1877)
"There was no castor oil at all in the pills. The Chairman : This is the case of a purchaser ... I have heard of these pills being sold as castor oil pills, ..."

3. Merchants' Magazine and Commercial Review by William B. Dana (1851)
"That '• large Importations of castor Oil from the East Indies have been recently made, and more .is on the way,'' is very true ; and the writer has been ..."

4. The Merchants' Magazine and Commercial Review by Isaac Smith Homans, William Buck Dana (1851)
"Cold pressed Oil has always been considered the best That " large importations of castor Oil from the East Indies has been recently made, and more is on the ..."

5. A Dictionary of Applied Chemistry by Thomas Edward Thorpe (1921)
"In 1913 the imports of castor seeds into Marseilles amounted to 25157 tons, ... The total imports of castor oil into this country in 1910 were ..."

6. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1868)
"The alcohol which I used was prepared by distilling a mixture of castor-oil soap and caustic soda in a flask of thin copper-sheeting as quickly as possible. ..."

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