微び粒りゅう子し病びょうびりゅうしびょうMeanings1nounpebrine; silkworm pebrine diseaseA disease of silkworms caused by microsporidian parasites. Technical term used in sericulture.微び粒りゅう子し病びょうは蚕かいこの主しゅ要ような病びょう気きの一ひとつです。Pebrine is one of the major diseases of silkworms.