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9,747 words — headwords with part of speech, pronunciation, and a plain-language definition.

protobromure: protobromide
protocanonique: protocanonical
protocarbure: protocarbide
protocelte: Proto-Celtic
protocerque: protocercal
protochlorure: protochloride
protocolaire: protocol; formal
protocolairement: formally (according to protocol)
protocole: protocol
protocyanure: protocyanide
protocérébron: protocerebrum
protofluorure: protofluoride
protogalaxie: protogalaxy
protogine: protogine
protogyne: protogynous
protogynie: protogyny
protohistoire: protohistory
protohistorien: protohistorian
protohistorique: protohistoric
protoiodure: protoiodide
protolangue: proto-language
protologisme: protologism
protologue: protologue
protomartyr: protomartyr
protomartyre: protomartyress; female equivalent of protomartyr
protomorphose: protomorphosis
protomé: protome
protométrie: protometry
proton: proton
protonation: protonation
protonique: protonic
protoniser: to protonate
protonotaire: prothonotary
protoné: protonated
protophosphure: protophosphide
protoplanète: protoplanet
protoplanétaire: protoplanetary
protoplasme: protoplasm
protoplaste: protoplast
protoporphyrine: protoporphyrin
protoptère: protopterid
protoscience: protoscience
protosel: protosalt
protostomien: protostomian
protostomien: protostomian
protosulfure: protosulfide
protoséléniure: protoselenide
protothérien: prototherian
protothérien: prototherian
prototrophe: prototrophic
prototrophe: prototroph
prototrophie: prototrophy
prototype: prototype
prototypique: prototypical
prototypiquement: prototypically
protoxyde: monoxide (oxide containing a single oxygen atom)
protoxyde d'azote: nitrous oxide
protozoaire: protozoan
protoétoile: protostar
protractile: protractile