(n. & adj.) (Designating) a type of embedding in which a linguistic element that is part of one clause operates indirectly as part of another.
Example:
- What do you think happened? [What do you think? / What happened?]
- He earns a lot more money than he admits. [He earns a lot more money than … / He admits he earns]
Confusion over pushdown with a relative clause is a common cause of hypercorrection:He was searching for his parents whom he hoped were still alive [He was searching for his parents
who .. were still alive / He hoped
they were still alive]