botryoid


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botryoid

[′bä·trē‚ȯid]
(geology)
A mineral formation shaped like a bunch of grapes.
Specifically, such a formation of calcium carbonate occurring in a cave. Also known as clusterite.
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References in periodicals archive ?
In one of these birds (C6), characteristic botryoid inclusions were detected in the thymus, and the other (C7) exhibited nodular lymphoid hyperplasia and a small number of cytoplasmic inclusion body-like structures in the villous intestinal cells.
5 Short arm of chromosome 11 abnormalities PAX3/FKHR and PAX7/FKHR fusion transcripts uncommonly present Botryoid variant of embryonal RMS Deletion of short arm of chromosome 1 Trisomies of chromosomes 13 and 18e Spindle cell RMS No data regarding cytogenetic abnormalities Alveolar RMS t(2;13)(q36;q14) translocation: most cases t(1;13)(p36;q14) translocation: minority of cases PAX3/FKHR fusion transcript (80%-90% of cases) PAX7/FKHR fusion transcript (10%-20% of cases) Table 6.
Microhenn cortices are dominated by fans or botryoids of coarse, inclusion-rich spar, but they also contain microspar, renalcid species A, well-defined peloids, and peloids with diffuse boundaries (grumose structure).