fisiológicavsfisiológicasWhich spelling fits?

Which to use

“fisiológica” and “fisiológicas” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#38,713
“fisiológica” frequency rank
#39,761
“fisiológicas” frequency rank
78474
confusion score

Side-by-Side Comparison

Feature fisiológica fisiológicas
Definition Forma del femenino de fisiológico. Forma del femenino plural de fisiológico.

Where the eye mixes fisiológica and fisiológicas

Muted = shared; highlighted = the visual trap. They share 11 letters in sequence. fisiológica runs 11 letters (CVCVVCVCVCV) against fisiológicas's 12 (CVCVVCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

11 ch
fisiológica
12 ch
fisiológicas

Why the eye confuses fisiológica with fisiológicas

A purely visual mix-up. fisiológica ([fisjoˈloxika]) and fisiológicas ([fisjoˈloxikas]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “fisiológica” sits inside “fisiológicas”. Our composite confusion score for this pair is 78474, derived from the frequency rank of both members and their visual similarity.

fisiológica is recorded at frequency rank #38,713, classified as anadj, pronounced [fisjoˈloxika]. 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 78474, this pair ranks #14,400 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of fisiológica vs fisiológicas

Shared letters: acfgilosó. Private to "fisiológica": -. Private to "fisiológicas": -.

"fisiológica" · 11 letters · shape CVCVVCVCVCV  ·  "fisiológicas" · 12 letters · shape CVCVVCVCVCVC

Frequently Asked Questions

Can "fisiológica" and "fisiológicas" be used interchangeably?
No. They are said differently ([fisjoˈloxika] versus [fisjoˈloxikas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "fisiológica" vs "fisiológicas" - which ranks higher?
"fisiológica" is the more common of the two: it sits at frequency rank #38,713 in our Spanish list, against #39,761 for "fisiológicas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "fisiológica" 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 #14,400 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "fisiológica" and "fisiológicas" also get mixed up with nearby pairs, the highest-scored neighbour is "fisiológicas vs fisiológicos". Nearby pair

Confusion rank #14,400 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list