• WordNet 3.6
    • n acervulus small asexual fruiting body resembling a cushion or blister consisting of a mat of hyphae that is produced on a host by some fungi
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Century Dictionary and Cyclopedia
    • n acervulus In anatomy, a mass of calcareous gritty particles, consisting principally of earthy salts, found within and sometimes on the outside of the conarium or pineal body of the brain; brain-sand. Commonly called acervulus cerebri (acervulus of the brain).
    • n acervulus The fruiting pustule of certain fungi, as Glæosporium and related genera, consisting of small dense masses of conidiophores and conidia formed beneath the epidermis of the host, which bursts and permits the escape of the conidia when they mature.
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