phenanthroline
noun
phenanthroline is spelled P-H-E-N-A-N-T-H-R-O-L-I-N-E. The wrong spelling people search most is phenathroline: about 10 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 10 of all searches for the word. Phenanthroline is a noun meaning “A tricyclic heterocyclic compound having two pyridine rings fused with a benzene ring; any of its derivatives”. The plural of phenanthroline is phenanthrolines.
How many letters and syllables are in phenanthroline?
| Letters | 14: P-H-E-N-A-N-T-H-R-O-L-I-N-E |
|---|---|
| In writing | about once in every 91 million words; the 305,310th most frequent word form |
| Wrong spellings searched | 1; the most searched, phenathroline, about 10 Bing searches a month (all of them) |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
How do you spell phenanthroline?
Phenanthroline is spelled P-H-E-N-A-N-T-H-R-O-L-I-N-E. One wrong spelling is searched or written often enough to measure; together they are about 1 in 10 of the searches for phenanthroline in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is phenanthroline?
Phenanthroline appears about once in every 91 million words in written English, the 305,310th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of phenanthroline
- phenanthrolines plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does phenanthroline mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A tricyclic heterocyclic compound having two pyridine rings fused with a benzene ring; any of its derivatives
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does phenanthroline come from?
Blend of phenanthrene + quinoline.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).