Small polaron is a quasiparticle formed when an electron in a crystal latttice distorts the lattice and carries along with it under the influence of external electric field.

A bipolaron is a doubly-charged polaron, or a bound pair of two polarons.

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern PO-A--N. That is, seven letter words with 1st letter P and 2nd letter O and 4th letter A and 7th letter N. In alphabetical order, they are:

polaron

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern P-LA--N. That is, seven letter words with 1st letter P and 3rd letter L and 4th letter A and 7th letter N. In alphabetical order, they are:

paladin

polaron

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 9 words with the pattern ---AR-N. That is, seven letter words with 4th letter A and 5th letter R and 7th letter N. In alphabetical order, they are:

camaron

cumarin

heparin

megaron

navarin

polaron

savarin

stearin

tamarin