Which to use
“biología” is a noun and “biológicas” is an adjective - they look or sound alike but fill different roles in a sentence.
- #6,984
- “biología” frequency rank
- #16,513
- “biológicas” frequency rank
- 23497
- confusion score
Side-by-Side Comparison
| Feature | biología | biológicas |
|---|---|---|
| Definition | Ciencia que estudia la estructura, función y desarrollo de los seres vivos | Forma del femenino plural de biológico. |
Where the eye mixes biología and biológicas
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. biología runs 8 letters (CVVCVCVV) against biológicas's 10 (CVVCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses biología with biológicas
These two trip readers on the page rather than in the ear: biología is [bjoloˈxia] while biológicas is [bjoˈloxikas]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 23497, derived from the frequency rank of both members and their visual similarity.
biología is recorded at frequency rank #6,984, classified as anoun, pronounced [bjoloˈxia]. biológicas is at rank #16,513, tagged as anadj, pronounced [bjoˈloxikas].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 23497, this pair ranks #245,532 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of biología vs biológicas
Shared letters: abgilo. Private to "biología": í. Private to "biológicas": csó.
"biología" · 8 letters · shape CVVCVCVV · "biológicas" · 10 letters · shape CVVCVCVCVC
Frequently Asked Questions
Is swapping "biología" for "biológicas" ever safe?
In ordinary Spanish text, does "biología" or "biológicas" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "biología" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "biológicas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #245,532 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "biología" and "biológicas" also get mixed up with nearby pairs, the highest-scored neighbour is "biología vs biólogos". Nearby pair
Confusion rank #245,532 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.