~ 1
■ noun an organ of the body which secretes particular chemical substances.
↘a lymph node.
Origin
C17: from Fr. ~e , alt. of OFr. ~re , from L. ~ulae 'throat ~s'.
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~ 2
■ noun a sleeve used to produce a seal round a piston rod or other shaft.
Origin
C19: prob. a var. of Scots glam 'a vice or clamp'; related to clamp 1 .