Unscramble Ipteroid

What is the meaning of word ipteroid unscrambled?

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

Make more words by adding or removing letters

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

1. diopter - Definition of diopter

2. dioptre - Definition of dioptre

3. diorite - Definition of diorite

4. peridot - Definition of peridot

5. Poitier - Definition of Poitier

6. proteid - Definition of proteid

7. riptide - Definition of riptide

8. tiderip - Definition of tiderip

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling pteroid
2) Removing the letter P and unscrambling iteroid
3) Removing the letter T and unscrambling iperoid
4) Removing the letter E and unscrambling iptroid
5) Removing the letter R and unscrambling ipteoid
6) Removing the letter O and unscrambling ipterid
7) Removing the letter I and unscrambling ipterod
8) Removing the letter D and unscrambling ipteroi

More anagrams containing the letters I P T E R O I D
iptideor iptidero dtrpiieo petirodi