undermargin

Etymology

From under- + margin.

undermargin means The lower rim or margin of something. Lexicurio rates it Rare gem — a strength score of 82 out of 100.

noun

The lower rim or margin of something.“In a valve of the type herein described, the combination of a valve casing provided with a partition dividing its interior into an inlet chamber, an outlet chamber and a piston chamber, the piston chamber having a lower portion of greater area than its upper portion, the said partition having a passage connecting the inlet and outlet chambers, the undermargin of said passage being formed into a va”
The lower margin of a page or of an inset image on a page, where it is possible to add a caption.“On the undermargin stands the inscription: "Abolish the Tsing, exterminate the Manchoos.””
A shortfall; the amount by which the value of an investment purchased on margin falls below the required maintenance amount.“In the instant case, it should be noted that the petitioner did not know the exact abount of its undermargin, and that even after its request for a statement of account, it was only some three months thereafter that private respondents were able to comply.”

To fall below margin; to create an undermargin.“In view of the second aspect of its control function, the Federal Reserve Board prohibits, with specified limited exceptions, the wisthdrawal of securities from general accounts where such withdrawals would undermargin such accounts.”
To buy less on margin than one can afford.“Finally, exchanges need to be wary of adverse selection — positions that are undermargined would be heavily used while those that are overmargined would be less popular.”