tar ball
noun
a lump or blob of solidified tar resulting from an oil spill, natural seepage from the sea, or other source, that resists biodegradation and often washes up on beaches.
Origin of tar ball
First recorded in 1725–35
Words nearby tar ball
taqlid,
taqueria,
tar,
tar and feather,
tar baby,
tar ball,
tar boy,
tar heel,
tar heel state,
tar pit,
tar river