The word is in the Wiktionary

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

— English words —

• protoneutron␣star n. (Astronomy) A star which is cooling and contracting to become a neutron star.
• proto-neutron␣star n. (Stars) The degenerate core of a massive star, prior to its emergence after a supernova as a neutron star.

21 English words from 2 English definitions

after and Astronomy become contracting cooling core degenerate emergence its massive neutron neutron␣star of␣a prior prior␣to star Stars supernova The which

2 suffixes (New words found by adding one or more letters at the end of the word.)

protoneutron␣stars proto-neutron␣stars

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

neu Neu NEU neut neut. neutro- neutron neutrons neutron␣star one -one ons ONS onst oto Oto OTO oto- pro Pro PRO pro- Pro. -pro- Prot prot- Prot. proto Proto proto- proton protoneutron ron Ron RON RONs rot ROT roto roto- roton sta Sta STA Sta. star Star tar Tar TAR ton TON -ton tone Tone TRO tron Tron -tron trons UTR

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

ats ATs ATS at's eno- nor NOR nor- Nor. not NOT not. Not. Noto noto- orp ort ORT oto Oto OTO oto- rat Rat RAT 'rat rats RATs 'rats RTU snort tor Tor TOR torp TSN tue Tue TUE Ueno

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

protoneutron␣stars proto-neutron␣stars

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