defective virus one that cannot be completely replicated or cannot form a protein coat; in some cases replication can proceed if missing gene functions are supplied by other viruses; see also helper virus.
subjugate - put down by force or intimidation; The government quashes any attempt of an uprising; China keeps down her dissidents very efficiently; The rich landowners subjugated the peasants working the land
One sentence is under the other sentence (sub means under). Sentences that use subordination (grammar books call them complex sentences) have a main clause or independent clause and one or more subordinate clauses or dependent clauses).