13-Letter Words Matching ____M_______S

There are 131 13-letter words that match ____M_______S. 36 are common words, such as ACCUMULATIONS and ANTIMACASSARS. A rarer one is WHIGMALEERIES. In this set, I is the most frequent open letter (108 words). 27 words contain a doubled letter.

Full list 131

Common words

accumulationsantimacassarsantimalarialsassimilationsbicameralismscalumniationsdecommissionsdehumidifiersdelimitationsdemimondainesdenominationsdocumentaries
accumulationsantimacassarsantimalarialsassimilationsbicameralismscalumniationsdecommissionsdehumidifiersdelimitationsdemimondainesdenominationsdocumentariesentomologistsilluminationsincompatiblesincompetencesinseminationsintemperancesintimidationsmademoisellesmaximizationsmetamorphismsmetamorphosesmetamorphosisminimizationsoleomargarinsoptimizationsperambulatorspharmaceuticspharmacopeiasrecommissionsrenominationsseismologistssemimonthliessteamfittingstelemarketersaccompanyistsaeromechanicsautomorphismschromaticnesschromatogramschromatolysiscolumniationselasmobranchsendometriosesendometriosisendomorphismsentomophagousentomophilousephemeralnessfreemasonrieshemimorphiteshomomorphismsinhomogeneousintumescencespleomorphismspolymorphismsspermatocytesspermatozoidsstormtroopersstromatolitestelemechanicsthermocouplesthermogenesisthermometriesthermospheresthermostaticsunkemptnessesaccommodatorsaccomplishersaeromedicinesallomorphismsassemblagistsautomobilistschromaticismschromatolyseschromocenterschromospherescinemathequescytomembranesdecompensatesdelaminationsdenominativesdetumescencesdisambiguatesdreamlessnessdynamometriesencumbrancersentomophiliesenzymologistsestimablenessextemporizersfellmongerieshemimorphismsidiomaticnessincommoditiesindomethacinsinhumannessesironmongeriesmecamylaminesmisemphasizesmonomorphismsmyxomatosisesnewsmagazinesnonimmigrantsoptimisationsovermedicatesparameterizesparamountciesparamyxoviruspneumonitidespneumonitisespragmaticismspragmaticistspreamplifierspyromorphitesracemizationsrecommitmentsredemptionersremembrancersscrimshandersseismometriessnowmobilingssnowmobilistsspermatozoansstigmasterolsthaumaturgiesthermophiloustriumphalismstriumphalistswhigmaleeries

About this list

Words
131 (36 common words)
Common example
accumulations
Rare example
whigmaleeries
Doubled letters
27
Ending in S
131
Most frequent letter
I (108)

Questions

How many 13-letter words matching ____m_______s are there?

131. 36 of them are common words.

What is a common example?

ACCUMULATIONS is among the common words in this set.