CASTOR

Castor, genus Castor

(noun) type genus of the Castoridae: beavers

beaver, castor

(noun) a hat made with the fur of a beaver (or similar material)

caster, castor

(noun) a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable

caster, castor

(noun) a shaker with a perforated top for sprinkling powdered sugar

Castor, Alpha Geminorum

(noun) a multiple star with 6 components; second brightest in Gemini; close to Pollux

Source: WordNet® 3.1


Etymology 1

Noun

castor (plural castors)

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

A hat made from the fur of the beaver.

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

A heavy quality of broadcloth for overcoats.

Castoreum (bitter exudate of mature beavers).

Any of various nymphalid butterflies of the genus Ariadne, of Africa and Asia.

Etymology 2

Noun

castor (uncountable)

(mineral) A variety of petalite found in Elba.

Synonyms

• castorite

Anagrams

• Castro, Croats, acrost, actors, co-star, costar, scroat, scrota, tarocs

Proper noun

Castor

(Greek mythology) One of the Dioscuri

(star) A double star in the constellation Gemini; alpha (α) Geminorum.

A village and civil parish in city of Peterborough district, Cambridgeshire, England (OS grid ref TL1298).

A town in Alberta, Canada. From French castor (“beaver”).

A village in Bienville Parish, Louisiana, United States. From French castor (“beaver”).

A surname.

Anagrams

• Castro, Croats, acrost, actors, co-star, costar, scroat, scrota, tarocs

Source: Wiktionary


Cas"tor, n. Etym: [L. castor the beaver, Gr.

1. (Zoöl.)

Definition: A genus of rodents, including the beaver. See Beaver.

2. Castoreum. See Castoreum.

3. A hat, esp. one made of beaver fur; a beaver. I have always been known for the jaunty manner in which I wear my castor. Sir W. Scott.

4. A heavy quality of broadcloth for overcoats.

Cast"or, n.

Definition: See Caster, a small wheel.

Cas"tor, n. Etym: [L.] (Astron.)

Definition: the northernmost of the two bright stars in the constellation Gemini, the other being Pollux.

Cas"tor, Cas"tor*ite, n. Etym: [The minerals castor and pollux were so named because found together on the island of Elba. See Castor and Pollux.] (Min.)

Definition: A variety of the mineral called petalite, from Elba.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

23 May 2025

THOUGHTFULLY

(adverb) showing consideration and thoughtfulness; “he had thoughtfully brought with him some food to share”


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Coffee Trivia

Some 16th-century Italian clergymen tried to ban coffee because they believed it to be “satanic.” However, Pope Clement VII loved coffee so much that he lifted the ban and had coffee baptized in 1600.

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