biological child: meaning, definition, pronunciation and examples
MediumFormal to neutral; common in legal, medical, academic, and personal/family discourse.
Quick answer
What does “biological child” mean?
A child who is genetically related to their parents, as opposed to an adopted, step-, or foster child.
Audio
Pronunciation
Definition
Meaning and Definition
A child who is genetically related to their parents, as opposed to an adopted, step-, or foster child.
A person who shares DNA with their parents, often used in legal, medical, and social contexts to distinguish genetic from non-genetic parental relationships. Can also imply a sense of lineage, inheritance, or natural connection.
Dialectal Variation
British vs American Usage
Differences
Usage is largely identical. Slight preference in UK English for 'birth child' in some social work/adoption contexts, though 'biological child' remains standard.
Connotations
Neutral in professional contexts. In personal conversation, it can sometimes sound clinical or create an unintended emotional distance compared to simply 'my child'.
Frequency
Somewhat more frequent in American English due to higher visibility of discourse around adoption, surrogacy, and DNA testing.
Grammar
How to Use “biological child” in a Sentence
[Parent's] biological child[Parent] has a biological child (with [Partner])[Child] is the biological child of [Parent]to have/give birth to a biological childVocabulary
Collocations
Examples
Examples of “biological child” in a Sentence
noun
British English
- The court ruling emphasised the rights of the biological child.
- After the DNA test, he discovered he had a biological child living abroad.
- She decided to search for her biological child whom she had given up for adoption.
American English
- The inheritance law favored the biological child over other relatives.
- They were unable to have a biological child of their own.
- Finding his biological child was the most emotional moment of his life.
Usage
Meaning in Context
Business
Rare. Potentially in family business succession discussions.
Academic
Common in sociology, psychology, law, and genetics papers discussing kinship.
Everyday
Used in conversations about family history, adoption, or medical history.
Technical
Essential in legal documents (wills, custody), medical records, and genetic counselling.
Vocabulary
Synonyms of “biological child”
Strong
Neutral
Weak
Vocabulary
Antonyms of “biological child”
Watch out
Common Mistakes When Using “biological child”
- Using 'biologic child' (missing '-al').
- Confusing 'biological' with 'biological' in the sense of 'organic farming'.
- Using it redundantly (e.g., 'He is my biological son' when context already makes genetics clear).
- Capitalising it as a proper noun.
FAQ
Frequently Asked Questions
Not inherently offensive in factual contexts (legal, medical). However, within a family, constantly distinguishing a 'biological child' from siblings can feel exclusionary. Sensitivity is key.
They are often synonyms. 'Birth child' can slightly emphasise the act of childbirth, while 'biological child' emphasises genetic link. 'Birth child' is less common in American English.
Yes, this is a common scenario referenced in discussions about paternity, DNA databases, and 'secret children'.
No. It only describes the genetic relationship. A biological child can be an adult, deceased, or raised by others.
A child who is genetically related to their parents, as opposed to an adopted, step-, or foster child.
Biological child is usually formal to neutral; common in legal, medical, academic, and personal/family discourse. in register.
Biological child: in British English it is pronounced /ˌbaɪ.əˈlɒdʒ.ɪ.kəl tʃaɪld/, and in American English it is pronounced /ˌbaɪ.əˈlɑː.dʒɪ.kəl tʃaɪld/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Flesh and blood (though this is broader)”
- “Of one's own blood”
Learning
Memory Aids
Mnemonic
Think: BIOlogy = the study of living organisms. A BIOlogical child is connected by the 'bio' - the life and genes - of the parents.
Conceptual Metaphor
LINEAGE AS A BIOLOGICAL CHAIN / BLOODLINE. Inheritance as a genetic blueprint.
Practice
Quiz
In which context is the term 'biological child' LEAST likely to be necessary?