Which to use
“fisiología” is a noun and “fisiológicas” is an adjective - they look or sound alike but fill different roles in a sentence.
- #18,548
- “fisiología” frequency rank
- #39,761
- “fisiológicas” frequency rank
- 58309
- confusion score
Side-by-Side Comparison
| Feature | fisiología | fisiológicas |
|---|---|---|
| Definition | Ciencia que estudia las funciones físicas y bioquímicas de los seres vivos. | Forma del femenino plural de fisiológico. |
Where the eye mixes fisiología and fisiológicas
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. fisiología runs 10 letters (CVCVVCVCVV) against fisiológicas's 12 (CVCVVCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses fisiología with fisiológicas
These two trip readers on the page rather than in the ear: fisiología is [fisjoloˈxia] while fisiológicas is [fisjoˈloxikas]. 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 58309, derived from the frequency rank of both members and their visual similarity.
fisiología is recorded at frequency rank #18,548, classified as anoun, pronounced [fisjoloˈxia]. fisiológicas is at rank #39,761, tagged as anadj, pronounced [fisjoˈloxikas].
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 58309, this pair ranks #66,941 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of fisiología vs fisiológicas
Shared letters: afgilos. Private to "fisiología": í. Private to "fisiológicas": có.
"fisiología" · 10 letters · shape CVCVVCVCVV · "fisiológicas" · 12 letters · shape CVCVVCVCVCVC
Frequently Asked Questions
Do "fisiología" and "fisiológicas" mean the same thing in a sentence?
In ordinary Spanish text, does "fisiología" or "fisiológicas" show up more?
Useful next steps
Eye-level mix-up between "fisiología" and "fisiológicas" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "fisiología" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fisiológicas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #66,941 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "fisiología" and "fisiológicas" also get mixed up with nearby pairs, the highest-scored neighbour is "fisiológicas vs fisiológicos". Nearby pair
Confusion rank #66,941 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.