Unscramble Isetrism

What is the meaning of word isetrism unscrambled?

What 8 letter words can be made from letters I S E T R I S M:

Make more words by adding or removing letters

How many 7 letter words can you make from letters I S E T R I S M?

1. merisis - Definition of merisis

2. miriest - Definition of miriest

3. misters - Definition of misters

4. mistier - Definition of mistier

5. mitises - Definition of mitises

6. rimiest - Definition of rimiest

7. smiters - Definition of smiters

8. stimies - Definition of stimies

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling setrism
2) Removing the letter S and unscrambling ietrism
3) Removing the letter E and unscrambling istrism
4) Removing the letter T and unscrambling iserism
5) Removing the letter R and unscrambling isetism
6) Removing the letter I and unscrambling isetrsm
7) Removing the letter S and unscrambling isetrim
8) Removing the letter M and unscrambling isetris

More anagrams containing the letters I S E T R I S M
isetrmis isetrmsi iersistm esriimts