Sentence:  For the albumin method , equal volumes of 30 % bovine albumin , sample and 2 % <WSD>cells</WSD> suspended in saline were allowed to stand at room temperature for 1 hr and then were centrifuged at 1000 rpm for 1 min . 
Meaning of the word marked with <WSD> tags:  (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals