13-Letter Words Containing: E,R,R,I,N,S

• an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)

• an antineoplastic drug used to treat Hodgkin's disease

• an antibiotic (trade name Erythrocin or E-Mycin or Ethril or Ilosone or Pediamycin) obtained from the actinomycete Streptomyces erythreus; effective against many Gram-positive bacteria and some Gram-negative

• the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do

• the collection of rules imposed by authority

• Not pressurized.

• one of the four competitions in an elimination tournament whose winners go on to play in the semifinals