res

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
  2. noun a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
  3. noun ancient Egyptian sun god with the head of a hawk; a universal creator; he merged with the god Amen as Amen-Ra to become the king of the gods

Etymology

From re + -s.

In classic literature

Synonyms

reticuloendothelial system

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