What is "nematogen"

n. 1 (context zoology English) One of the (l/en: dimorphic) forms of the (l/en: species) of (taxlink Dicyema genus noshow=1), which produce (l/en: vermiform) (l/en embryo embryos); opposed to (term rhombogene rhombogen English). 2 (context chemistry English) Any (l/en: nematic) (l/en: mesogen).