15-Letter Words Matching ________MA_____

There are 20 15-letter words that match ________MA_____. 7 are common words, such as DISINFORMATIONS and MISINFORMATIONS. A rarer one is THERMOREMANENCE. In this set, O is the most frequent open letter (20 words). 2 words contain a doubled letter.

Full list 20

disinformationsmisinformationsoverestimationsreconfirmationstatterdemalionstransformationsunsportsmanlikechlorpromazinesmenispermaceousbiomathematicalbiosystematistsdelegitimationshemochromatoseshemochromatosisinteranimationsmonochromatismsnoninformationsnonmathematicaloutdoorsmanshipthermoremanence

About this list

Words
20 (7 common words)
Common example
disinformations
Rare example
thermoremanence
Doubled letters
2
Ending in S
15
Most frequent letter
O (20)

Questions

How many 15-letter words matching ________ma_____ are there?

20. 7 of them are common words.

What is a common example?

DISINFORMATIONS is among the common words in this set.