| Answer | Crossword Clue |
|---|---|
| rugal | pertaining to a ruga (an anatomical fold or wrinkle) |
| rugate | resembling a ruga (an anatomical fold or wrinkle) |
| rugae | RUGA, an anatomical fold or wrinkle |
| ruga | an anatomical fold or wrinkle |
| ruga | an anatomical fold or wrinkle (as of the gastric mucous membranes) usually used in plural |
| retial | pertaining to a rete (an anatomical mesh or network) |
