molecular biology
"molecular-biology" is a 16-letter English headword indexed on PlainSpell.
The verdict
“molecular biology” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 17
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The branch of biology that studies the macromolecules of life, such as proteins, lipoproteins and nucleic acids.
| Property | Value |
|---|---|
| Headword | molecular biology |
| Language | English |
| Part of speech | Noun |
| Letters | 17 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “molecular biology” sits in English frequency
Rare enough to double-check
molecular biology is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
No generated misspelling entries exist for molecular biology in our index, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
This headword's origin isn't recorded in our source data, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is molecular biology, spelled M-O-L-E-C-U-L-A-R- -B-I-O-L-O-G-Y.
Definition
- 1The branch of biology that studies the macromolecules of life, such as proteins, lipoproteins and nucleic acids.
- 2The branch of biology that studies the manipulation of genetic sequence of DNA.
- 3The technology of gene manipulation.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “molecular biology”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is M-O-L-E-C-U-L-A-R- -B-I-O-L-O-G-Y - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.