The singular is cavity.
it is already in its singular form.
The form hypothesis is the singular form. The plural form is hypotheses.
The singular form in stimulus.
The singular form is phenomenon.
Bodies where buried under volcanic ash. The bodies themselves decayed but left cavities that preseved their dying poses. Archaeologists later poured plaster into these cavities to form casts of the people.
cavity
The word cavities is a plural noun. The singular is cavity.
The singular form of the demonstrative pronoun 'these' is this.
The singular form of "that" is "it."
The singular form is cuff.
it is already in its singular form.
"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.
The singular form of Oases is, Oasis.
"Wash" is the singular form of "wash."