Unscramble Niisops

What is the meaning of word niisops unscrambled?

What 7 letter words can be made from letters N I I S O P S:

1. isospin - Definition of isospin

2. sinopis - Definition of sinopis

Make more words by adding or removing letters

How many 6 letter words can you make from letters N I I S O P S?

1. opsins - Definition of opsins

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter N and unscrambling iisops
2) Removing the letter I and unscrambling nisops
3) Removing the letter I and unscrambling nisops
4) Removing the letter S and unscrambling niiops
5) Removing the letter O and unscrambling niisps
6) Removing the letter P and unscrambling niisos
7) Removing the letter S and unscrambling niisop

More anagrams containing the letters N I I S O P S
niisosp niispos ssipino niiossp