LingvoCore.com

idiogram

Very Low / Specialised
UK/ˈɪd.i.əʊ.ɡræm/US/ˈɪd.i.ə.ɡræm/

Technical/Scientific

My Flashcards

Definition

Meaning

A diagrammatic or schematic representation of a chromosome set, showing chromosomes arranged in order of size and centromere position.

A visual, organized chart used in cytogenetics to display karyotype data for analysis or diagnostic purposes.

Linguistics

Semantic Notes

The term is almost exclusively used in cytogenetics and genetics. It refers specifically to a standardized representation, not just any image of chromosomes.

Dialectal Variation

British vs American Usage

Differences

No significant lexical differences in usage; both dialects use the term identically within the scientific field.

Connotations

Highly technical term with no colloquial connotations.

Frequency

Extremely rare outside of professional genetic and medical literature; identical low frequency in both UK and US English.

Vocabulary

Collocations

strong
chromosome idiogramkaryotype idiogramstandard idiogram
medium
construct an idiogramanalyse the idiogramidiogram shows
weak
human idiogramprepared idiogramidiogram of

Grammar

Valency Patterns

The [researcher/lab] prepared an idiogram of the [patient's/species] chromosomes.An idiogram was used to [identify/visualise/analyse] the [abnormality/karyotype].

Vocabulary

Synonyms

Strong

karyogram

Neutral

karyogramkaryotype chart

Weak

chromosome mapchromosome diagram

Usage

Context Usage

Business

Not used.

Academic

Used strictly in genetics and cytogenetics research papers and textbooks.

Everyday

Never used.

Technical

Core term in cytogenetics laboratories for visualising chromosomal data.

Examples

By Part of Speech

adjective

British English

  • The idiogrammatic representation was crucial.
  • The lab follows standard idiogrammatic conventions.

American English

  • The idiogrammatic analysis was complete.
  • They developed new idiogrammatic software.

Examples

By CEFR Level

B2
  • The scientist showed us an idiogram of human chromosomes.
  • An idiogram helps doctors see if chromosomes are normal.
C1
  • By constructing a detailed idiogram, the cytogeneticist identified a subtle translocation not visible in the raw micrograph.
  • The publication required a standardised idiogram according to the International System for Human Cytogenomic Nomenclature (ISCN).

Learning

Memory Aids

Mnemonic

Think 'I.D. the chromosomes' – an idiogram IDs and orders chromosomes for easy identification.

Conceptual Metaphor

A MAP or BLUEPRINT for chromosomes.

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • May be confused with 'идиома' (idiom) due to similar spelling. 'Idiogram' is 'идиограмма' (a scientific diagram), not a phraseological unit.

Common Mistakes

  • Confusing 'idiogram' with 'ideogram' (a pictorial symbol).
  • Using it to refer to any biological diagram.

Practice

Quiz

Fill in the gap
A cytogeneticist uses a(n) to visually analyse the organised set of a patient's chromosomes.
Multiple Choice

What is the primary purpose of an idiogram?

FAQ

Frequently Asked Questions

No. A karyotype is the actual number and appearance of chromosomes. An idiogram is the diagrammatic or schematic representation of that karyotype.

Almost never. It is a highly specialised term confined to cytogenetics and related medical fields.

An 'idiogram' is a scientific chart of chromosomes. An 'ideogram' is a graphic symbol that represents an idea or concept, like Chinese characters or traffic signs.

Geneticists, cytogeneticists, clinical laboratory scientists, researchers in genetics, and advanced students in these fields.