idioplasm

The scientist examines the idioplasm under a microscope.

Definition

1. Noun:
   • Biological substance: "idioplasm" refers to a hypothetical or historical concept in biology denoting a specific type of protoplasm believed to be responsible for hereditary transmission and the determination of an organism's traits. It is considered an archaic term, largely replaced by modern concepts like germ plasm or genetic material.

Usage Examples

• Noun:
  • Early biologists proposed that idioplasm contained the hereditary information passed from parents to offspring. (A historical biological substance thought to carry genetic traits.)
  • The theory of idioplasm was a precursor to our understanding of DNA and chromosomes. (An earlier idea about hereditary material.)

Advanced Usage

• "idioplasm theory": the historical hypothesis that a distinct protoplasmic substance governs inheritance.
  • The idioplasm theory was influential in 19th-century biology before the rediscovery of Mendel's work. (The hypothesis about a hereditary substance.)

Variants and Related Words

• Idioplasmic (adj): relating to or characteristic of idioplasm.
  • The idioplasmic model was later refined by August Weismann's germ plasm theory. (Pertaining to the concept of idioplasm.)

Synonyms

• Germ plasm: the modern term for hereditary material in cells.
• Protoplasm: the living content of a cell (broader term, not specific to heredity).

Related Idioms

• No common idioms exist for "idioplasm," as it is a specialized scientific term.