intervenor
UK/,intə'vi:nə/US/,intә'vi:nә(r)/
C2
Definitions
n.
A party that intervenes, especially in a legal case
（尤指法律案件中的）介入方，干预者
Root Breakdown
Root-derivedintervenebetween, among
+
-orcome, arrive
=intervenor
intervene + -or (agent) = "one who intervenes." The -or spelling is standard in legal contexts; -er elsewhere.
Example Sentences
- 1.
A third intervenor joined the lawsuit.