M E R C A P T O P U R I N E- A purine analogue, C5H4N4S, that acts as an antimetabolite by interfering with purine synthesis, used primarily in the treatment of acute leukemia.
P L A C I D N E S S-
1. Undisturbed by tumult or disorder; calm or quiet.
2. Satisfied; complacent.
C A T A L E C T I C- Lacking one or more syllables, especially in the final foot. Used of verse.
S T E E P L E C H A S E- A spire; also, the tower and spire taken together; the whole of a structure if the roof is of spire form.
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