unsegmented

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unsegmented

An unsegmented worm wriggles through the damp soil.

Definition

Adjective: Having a body that is not divided into distinct, repeating sections or segments.

Usage

The word "unsegmented" is a technical term primarily used in biology, specifically in zoology and anatomy, to describe organisms or body structures that lack segmentation. It is the opposite of "segmented."

Examples
  • The body plan of an earthworm is segmented, while that of a flatworm is unsegmented.
  • In the animal kingdom, nematodes are examples of unsegmented worms.
  • The early embryo showed an unsegmented structure before the division into somites began.
Advanced Usage
  • Comparative/Superlative Forms: While grammatically possible (e.g., "more unsegmented," "most unsegmented"), these forms are rarely used in scientific contexts. The term is typically used in a binary sense (segmented vs. unsegmented).
  • Figurative Use: In non-biological contexts, it can be used metaphorically to describe something that is continuous and not divided into distinct parts.
    • The report presented an unsegmented narrative of events, making the timeline difficult to follow.
Variants and Related Words
  • Segment (verb/noun): To divide into segments; a distinct section.
  • Segmented (adjective): Divided into segments. This is the direct antonym.
  • Non-segmented (adjective): A synonym, though "unsegmented" is more standard in scientific terminology.
  • Metamerism (noun): The condition of being constructed from a series of similar segments (metameres). An organism lacking this exhibits an unsegmented body plan.
Synonyms
  • Non-segmented
  • Holoblastic (in specific embryological contexts, referring to cleavage)
  • Continuous (in a general, non-technical sense)
Antonyms
  • Segmented
  • Metameric
  • Articulated
unsegmented

An unsegmented worm wriggles through the damp soil.

Adjective
  1. having a body that is not divided into segments
    • unsegmented worms