Unscramble Opterrid

What is the meaning of word opterrid unscrambled?

What 8 letter words can be made from letters O P T E R R I D:

Make more words by adding or removing letters

How many 7 letter words can you make from letters O P T E R R I D?

1. diopter - Definition of diopter

2. dioptre - Definition of dioptre

3. peridot - Definition of peridot

4. Pierrot - Definition of Pierrot

5. preriot - Definition of preriot

6. proteid - Definition of proteid

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter O and unscrambling pterrid
2) Removing the letter P and unscrambling oterrid
3) Removing the letter T and unscrambling operrid
4) Removing the letter E and unscrambling optrrid
5) Removing the letter R and unscrambling opterid
6) Removing the letter R and unscrambling opterid
7) Removing the letter I and unscrambling opterrd
8) Removing the letter D and unscrambling opterri

More anagrams containing the letters O P T E R R I D
optiderr optidrer eoidrtpr reptidro