| Answer | Crossword Clue |
|---|---|
| exteriors | EXTERIOR, the part on the outside |
| external | an exterior (the part on the outside) |
| externals | EXTERNAL, an exterior (the part on the outside) |
| exterior | the part on the outside |
| trophoblasts | A layer of tissue on the outside of a mammalian blastula, supplying the embryo with nourishment and later forming the major part of the placenta |
| trophoblast | A layer of tissue on the outside of a mammalian blastula, supplying the embryo with nourishment and later forming the major part of the placenta |
