9-Letter Words Containing: Z,I,R,B

• a storm with widespread snowfall accompanied by strong winds

• a series of unexpected and unpleasant occurrences

• breed animals or plants using parents of different races and varieties

• A fragment of RNA that can act as an enzyme.

• the type genus of Rhizobiaceae; usually occur in the root nodules of legumes; can fix atmospheric oxygen

• hazard to humans or the environment resulting from biological agents or conditions

• any bacterium or virus or toxin that could be used in biological warfare