| CRA | creeping red-berried perennial herb distinguished by clustered leaf whorls at tips of shoots |
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| CRA | something excellent of its kind |
| CRA | someone excellent of their kind |
| CRA | informal or slang terms for mentally irregular |
| CRA | the act of cracking something |
| CRA | a sudden sharp noise |
| CRA | the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process) |
| CRA | (informal) very good |
| CRA | making a loud sharp sound as of a rifle shot or a breaking branch or a whip |
| CRA | glazed china with a network of fine cracks on the surface |
| CRA | the sharp sound of snapping noises |
| CRA | to become, or to cause to become, covered with a network of small cracks |