14-Letter Words Containing: O,S,S,B,E,A,M

• an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot

• spasm of the eyelid muscle resulting in closure of the eye

• large class of higher fungi coextensive with subdivision Basidiomycota

• use of data (e.g. cytogenetic or biochemical) to assess taxonomic relations especially within an evolutionary framework