a fucoid seaweed growing on rocks exposed at low tide.
any of various seaweeds that grow on rocks exposed at low tide
noun 1. Norman, 1894–1978, U.S. illustrator. 2. a male given name. noun 1. Norman. 1894–1978, US illustrator, noted esp for magazine covers
- Rockwell hardness
noun See Rockwell scale
noun, Metallurgy. 1. a numerical expression of the hardness of a metal as determined by a test (Rockwell test) made by indenting a test piece with a Brale, or with a steel ball of specific diameter, under two successive loads and measuring the resulting permanent indentation.
- Rockwell protocol interface
(RPI) A cost-cutting feature of some modems allowing data compression and error correction (e.g. ITU-T V.42bis, V.42) to be provided in software instead of hardware. Usually an RPI modem comes with RPI-aware software (e.g. the low-end RPI models of Supra come with the COMit which supports RPI, providing MNP 2,4,5,7, V.42 and V.42bis). RPI is […]