What is a mucilaginous carbohydrate, resembling achroödextrin, extracted from squill as a colorless amorphous substance; -- so called because it is levorotatory called?

sinistrin — A mucilaginous carbohydrate, resembling achroödextrin, extracted from squill as a colorless amorphous substance; -- so called because it is levorotatory. (Webster's 1913.)

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