胚胎
pēi tāi · HSK 7
embryo
👶 胚 + 胎 both carry the 月 flesh radical = the not-yet-born body
Both glyphs use 月, the flesh/body radical. 胎 = 月 (flesh) + 台 (tower/base), the body taking its base form. Sounds roughly like pay-tie.
胎 — flesh radical 月 (肉) + phonetic 台
A semantic-phonetic compound. The flesh radical 月 (a form of 肉) signals a meaning related to the body, while 台 supplies the sound. Originally referring to the womb or fetus in the womb, 胎 extended to mean embryo, and later by analogy the inner layer of objects like tires.