Definition of "subtopic" []

• One of the divisions into which a main topic may be divided. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Advisor Takes, Postdoc Gives: In this scenario, the advisor is looking for a postdoc who is already a demonstrated expert in subtopic Q."
• "i think he was trying to make the point that – in the massacre trial, the chain of command (which is what the subtopic was at the moment in their conversation) did have something to do with the massacre (an SS general was convicted) i took a look at the video, and he does state ‘who did it†™ †the question is, was this a rhetorical question, or a statement as fact."
• "i think he was trying to make the point that – in the massacre trial, the chain of command (which is what the subtopic was at the moment in their conversation) did have something to do with the massacre (an SS general was convicted) i took a look at the video, and he does state ‘who did it’ — the question is, was this a rhetorical question, or a statement as fact."