胎面

surface of tire / tread (of tire)

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless

fetus / classifier for litters (of puppies etc) / padding (in clothing or bedding) / womb carrying a fetus / (fig.) origin / source / (loanword) tire