出典:Wiktionary
From Ancient Greek παρέγχῠμα (parénkhuma, “anything poured in beside”), from πᾰρᾰ- (para-, “beside”) + ἔγχῠμα (énkhuma, “instillation, content of a vessel”), given by the Greek anatomist Erasistratus to the peculiar substance of the lungs, liver, kidneys, and spleen, as if formed separately by the veins that run into them.
parenchyma (countable かつ uncountable, 複数形 parenchymas または parenchymata)