| Subject | English | Portuguese |
| commun., el. | adaptive Huffman coding | codificação de Huffman adaptativa |
| comp., MS, Braz. | Huffman coding | codificação de Huffman (An entropy encoding method for lossless data compression. It uses a variable length code table for encoding a source symbol (such as a character in a file) where the variable-length code table has been derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol) |