Definition

1. Noun:
   • A lash-like appendage used for locomotion: A long, slender, whip-like structure that projects from the cell body of certain cells, enabling them to move. It is found in sperm cells, many bacteria, and some protozoa.
   • A whip used to inflict punishment: A scourge or whip, often used in a historical, literary, or pedantically humorous context.

Examples of Usage

• Noun (Biological):
  • The bacterium propels itself through liquid using its flagellum.
  • The sperm cell's flagellum provides the motility necessary for fertilization.
• Noun (Whip):
  • The cruel overseer threatened the slaves with a flagellum. (This usage is often pedantic or historical.)

Advanced Usage

• "To bear the flagellum": A literary or archaic phrase meaning to endure scourging or severe punishment.
  • The martyr was said to bear the flagellum without a cry.

Variants and Related Words

• Flagella (n): The plural form of flagellum, especially in biological contexts.
  • Many motile bacteria possess multiple flagella.
• Flagellar (adj): Relating to or resembling a flagellum.
  • The flagellar motor is a complex nanomachine.
• Flagellate (v): To whip or scourge. (adj): Possessing flagella.
  • (v) To flagellate oneself as a form of penance.
  • (adj) A flagellate protozoan.

Synonyms

• Biological: Cilium (though cilia are typically shorter and more numerous), undulipodium.
• Whip: Scourge, lash, cat-o'-nine-tails.

Related Phrases

• "Flagellum Dei": (Latin: "Scourge of God") A historical epithet, notably for Attila the Hun.
  • Attila was called the Flagellum Dei by terrified Romans.

Related Idioms

• None commonly associated directly with the word "flagellum" in modern English idiom. The term is primarily technical or literary.

Noun

1. a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)
2. a whip used to inflict punishment (often used for pedantic humor)