The singular form is septum; the plural form is septa.
The plural form of septum is septa.
The correct plural form for "septum" is "septa."
Anything that has to do with the concept of seven. September - use to be the seventh month in the old Julian calender. Septane an organic alkane molecule with seven carbon atoms.
The singular form of the demonstrative pronoun 'these' is this.
The singular form of "that" is "it."
Nasal septum
it is already in its singular form.
The singular form is cuff.
"Stratum" is the singular form of stratum. The plural form is "strata".
The form hypothesis is the singular form. The plural form is hypotheses.
A singular form of dice is a die
The singular form of feet is foot.