Brazil nut n. (Bot.) An oily, three-sided nut, the seed of the Bertholletia excelsa; the cream nut. Note: From eighteen to twenty-four of the seeds or "nuts" grow in a hard and nearly globular shell.
... the sustaining effect of the diet Joel recommended was due less to its intrinsic virtue than to some unusual and dominating quality of Joel's personality. And Joel, struggling with a peculiarly tough Brazil nut, reflected that Susan Fitzgerald was an intelligent woman as ... — Other People's Business - The Romantic Career of the Practical Miss Dale • Harriet L. Smith
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