song cầu khuẩn

Song cầu khuẩn được quan sát dưới kính hiển vi.

Definition

1. Noun (Biology, Microbiology):
   • Diplococcus: A type of bacterium that typically occurs in pairs of two spherical cells joined together. This is the primary and most specific meaning of "song cầu khuẩn" in scientific contexts.

Usage Examples

• Noun:
  • Vi khuẩn gây viêm phổi đôi khi là một song cầu khuẩn. (The bacteria causing pneumonia is sometimes a diplococcus.)
  • Dưới kính hiển vi, chúng tôi quan sát thấy hình ảnh song cầu khuẩn. (Under the microscope, we observed the image of diplococci.)

Advanced Usage

• The term is highly specialized and used almost exclusively in medical, microbiological, and anatomical fields. It refers to a specific morphological arrangement of bacterial cells (cocci in pairs).

Variants and Related Words

• Cầu khuẩn (n): Coccus; a general term for any spherical bacterium.
• Liên cầu khuẩn (n): Streptococcus; bacteria that form chains.
• Tụ cầu khuẩn (n): Staphylococcus; bacteria that form clusters like grapes.

Synonyms

• Diplococcus: The direct English equivalent.

Notes

• "Song cầu khuẩn" is a compound scientific term where "song" implies "pair" or "double," and "cầu khuẩn" means "coccus." It does not have common idiomatic or phrasal verb uses.