Meanings
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1
noun
historical: a small table container or a stand holding cruets and shakers for condiments
The waiter placed a silver castor of oil, vinegar, salt, and pepper on the table.
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2
noun
a variant spelling of caster: a small swiveling wheel fixed beneath furniture or equipment
One castor on the serving cart jammed against the floorboard.
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3
noun
historical: a hat or heavy cloth made from beaver fur or a similar material
He brushed the rain from his castor before entering the inn.
Thesaurus
Etymology
The beaver-fur senses came through French from Latin castor and Greek kastor, 'beaver.' The table-container and wheel senses are variant spellings of caster, from cast + -er, and have a separate history. Dickens's castors are the condiment vessels or their stand.