The word is in the Wiktionary

1 short excerpt of Wiktionnary (A collaborative project to produce a free-content dictionary.)

— English word —

• protonium n. (Physics) An exotic atom consisting of a proton bound to an antiproton.

11 English words from the English definition

antiproton atom bound bound␣to consisting consisting␣of exotic exotic␣atom of␣a Physics proton

One suffix (New word found by adding one or more letters at the end of the word.)

protoniums

32 words-in-word (Words found as is inside the word. Minimum size 3 letters.)

-ium Niu oni ONI onium -onium oto Oto OTO oto- pro Pro PRO pro- Pro. -pro- Prot prot- Prot. proto Proto proto- proton rot ROT roto roto- roton ton TON -ton Toni

19 words-in-word RTL (Words found written from right to left, inside the word. Minimum size 3 letters.)

Ino -ino Mui MUI not NOT not. Not. Noto noto- orp oto Oto OTO oto- tor Tor TOR torp

One anagram (New word found by changing the order of the letters.)

motuporin

2 anagrams found with an extra letter (New words formed with all the letters from the word and an extra letter.)

prostonium protoniums

4 anagrams found minus a letter (New words formed with all the letters from the word minus a letter.)

monitour Montuori pronotum toponium

One epenthesis (New word found when adding only one letter.)

prostonium

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• Visit 1Word.ws - the word PROTONIUM is not a valid scrabble word.
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