biological
/ˌbaɪ.əˈlɑ.d͡ʒɪ.kəl/adjective, noun
biological is spelled B-I-O-L-O-G-I-C-A-L: 10 letters and 5 syllables. It appears 20 times per million words in written English, the 4,224th most frequent word form (wordfreq, 2021 data). As an adjective, biological means “Of or relating to biology” (English Wiktionary, September 2026).
How many letters and syllables are in biological?
| Letters | 10: B-I-O-L-O-G-I-C-A-L |
|---|---|
| Syllables | 5 (from its American pronunciation) |
| In writing | 20 times per million words; the 4,224th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is biological?
Biological appears 20 times per million words in written English, the 4,224th 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).
How do you pronounce biological?
- UK /ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/
- US /ˌbaɪ.əˈlɑ.d͡ʒɪ.kəl/
Biological has 5 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-biological.wav, LL-Q1860_(eng)-Qwertygiy-biological.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with biological?
The 12 most written words on PlainSpell end in the same sounds as biological from its last stressed vowel (/ɑdʒɪkəl/):
- logical
- technological
- geological
- ideological
- neurological
- physiological
- chronological
- pathological
- pedagogical
- genealogical
- methodological
- phonological
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of biological
- biologicals plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does biological mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Of or relating to biology.
- 2
Relating to anatomy; anatomic, anatomical.
- 3
Related by consanguinity, especially as to parents and children.
biological mother
- 4
nonstandardproscribedOrganic (grown without agrochemicals).
noun
- 1
rareA biological product.
Iscador is a biological made from mistletoe which strengthens the natural immune system, and works against the growth of malignant cells.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate biological?
Wiktionary records 2 abbreviations of biological: CBN, NBC.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Biological in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | biologique |
| German | biologisch , leiblich |
| Portuguese | biológico |
| Spanish | biológico , consanguíneo |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.