A small number of RBCs are normally present in urine and usually result in a negative chemical test. An increased amount of hemoglobin and/or increased number of RBCs are detected as a positive chemical test result.
gigahertz. n, pl-hertz. 1. (Units) a unit of frequency equal to 10 9 hertz. Symbol: GHz.
Definition of kibitz for English Language Learners. : 1  to talk to someone in a friendly and informal way. : 2  to watch other people and make unwanted comments about what they are doing.