12-Letter Words Matching ________E_I_

There are 118 12-letter words that match ________E_I_. 13 are common words, such as ALPHANUMERIC and ANTIPATHETIC. A rarer one is WHIGMALEERIE. In this set, C is the most frequent open letter (88 words). 5 words contain a doubled letter.

Full list 118

Common words

alphanumericantipatheticcarcinogenicencyclopediaencyclopedichypoglycemiahypoglycemicneurasthenianeurasthenicnonstrategicquadriplegiaquadriplegic
alphanumericantipatheticcarcinogenicencyclopediaencyclopedichypoglycemiahypoglycemicneurasthenianeurasthenicnonstrategicquadriplegiaquadriplegicunapologeticagamogenesisanalphabeticangiogenesisanticathexisantimagneticbiosynthesisbiosyntheticcaenogenesiscataphoresisgastrocnemiiglycogenesisgyromagnetichistogenesishydrokinetichyperkinesiahyperpyrexiahypnogenesishysterogenickaryokinesisleucopoiesismonophyleticmycobacteriaorthogenesisorthogeneticosteogenesispalingenesispalingeneticparamagneticpathogenesisphotokinesisphotosphericphylogeneticphytogenesispolycythemiapolyphyleticpyromagneticsporogenesistroposphericaeromagneticamphisbaenicandrogenesisandrogeneticanorexigenicantiacademicantidiabeticantihystericantileukemicbioenergeticblastocoelicbronchogeniccataphoreticcladogenesiscladogeneticcyanogenesiscyanogeneticcyclogenesisdiabetogenicelectrogenicenantiomericenterocoelicgalactosemiagalactosemicgeostrategicgrotesqueriehistogenetichydrospherichyperendemichyperkinesishyperkinetichyperlipemiahyperlipemichypersthenichypocalcemiahypocalcemicinterallelicintergenericisoantigenicjaponaiseriekaryokineticleukemogenicleukopoiesisleukopoieticlithosphericnonaestheticnonantigenicnonmetamericpaedogenesispaedogeneticpancytopeniaparaesthesiapathogeneticpetrogenesispetrogeneticphilhellenicphotokineticplanisphericpolycythemicpostischemicpseudocyesisradiomimeticsynaesthesiasynaesthesisthalassaemiatrochantericwhigmaleerie

About this list

Words
118 (13 common words)
Common example
alphanumeric
Rare example
whigmaleerie
Doubled letters
5
Ending in S
28
Most frequent letter
C (88)

Questions

How many 12-letter words matching ________e_i_ are there?

118. 13 of them are common words.

What is a common example?

ALPHANUMERIC is among the common words in this set.