Search Result for "ribosome":
Wordnet 3.0

NOUN (1)

1. an organelle in the cytoplasm of a living cell; they attach to mRNA and move down it one codon at a time and then stop until tRNA brings the required amino acid; when it reaches a stop codon it falls apart and releases the completed protein molecule for use by the cell;
- Example: "the ribosome is the site of protein synthesis"