rare

Definitions

(Adjective) Meat "underdone" - verging on raw.

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(Abbreviation) Ronne Antarctic Research Expedition

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Not many, distinguished, vor not very popular, like not really, very low density, not common.

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(Abbreviation) Rife Advanced Research Enterprises.

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to be of limited supply

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(Adjective) Contrary of common

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(Adjective) infrequent

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(Adjective) Meat, briefly cooked, or, as the British used to say, "undercooked".
(If beef, it's red.)

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(Adjective) Beef that is hardly cooked.