List of 13-letter words beginning with

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There are 22 thirteen-letter words beginning with PROTOS

Proto-Salishan — prop.n. Synonym of Proto-Salish.
protosciences — n. Plural of protoscience.
proto-sciences — n. Plural of proto-science.
protoscoleces — n. Plural of protoscolex.
protoscolices — n. Plural of protoscolex.
protoselenide — n. (Inorganic chemistry) Any of a series of selenides of a particular…
protosequence — n. (Genetics) The sequence of bases in an ancestral genome.
protosilencer — n. (Genetics) An immature silencer.
protosilicate — n. (Chemistry) A silicate formed with the lowest proportion of…
protosinusids — n. Plural of protosinusid.
protosirenids — n. Plural of protosirenid.
protosolvents — n. Plural of protosolvent.
protosteliids — n. Plural of protosteliid.
protostomians — n. Plural of protostomian.
protosuchians — n. Plural of protosuchian.
protosulfides — n. Plural of protosulfide.
protosulphate — n. (Chemistry) A compound of sulphuric acid with the protoxide of a metal.
protosulphide — n. (Chemistry) That one of a series of sulphides of any element…
protosyllable — n. A rhythmic precursor to a syllable in birdsong.
protosynapses — n. Plural of protosynapse.
protosynaptic — adj. Relating to a protosynapse.
protosyncelli — n. Plural of protosyncellus.

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