parahydrogen
/ˌpɛɹəˈhaɪdɹəd͡ʒ(ə)n/
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
22
Scrabble Score
12
Letters
5
Syllables
10
Unique Chars
Meaning
noun
The form of the hydrogen molecule (H₂) in which the two nuclei have antiparallel spin; about 25% of hydrogen at room temperature.
Countable; Uncountable
Etymology
Etymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Hellenic *pərai Ancient Greek πᾰρᾰ́ (părắ) Ancient Greek πᾰρᾰ- (pără-)der. English para- Proto-Indo-European *wed- Proto-Indo-European *-r̥ Proto-Indo-European *wódr̥ Proto-Hellenic *údōr Ancient Greek ῡ̆̔́δωρ (hū̆́dōr) Ancient Greek ὑδρο- (hudro-)lbor. French hydro- Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) Proto-Indo-European *-os Proto-Indo-European *-ēs Proto-Hellenic *-ēs Ancient Greek -ης (-ēs) Ancient Greek -γενής (-genḗs)lbor. French -gène French hydrogènebor. English hydrogen English parahydrogen From para- + hydrogen.
Regional Pronunciation
- American English: /ˌpɛɹəˈhaɪdɹəd͡ʒ(ə)n/
- British English: /ˌpæɹəˈhaɪdɹəd͡ʒ(ə)n/