among botanists, signifies the head of any plant, but more particularly a poppy head; whence its syrup is called diacodium.

botany: A genus of the digynia order, belonging to the octandra clas of plants. The calyx is tetraphyllous, with small oblong horizontal leaves; the corolla consists of four very small linear petals; the stamens are eight filaments twice as long as the calyx; the antherae are roundish.

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