esophageal is an adjective.
The noun is esophagus (singular) with a plural esophagi or esophaguses (both forms are correct).
The singular form of esophageal is esophagus.
Esophageal (oesophageal) is an adjective and so does not have singular and plural forms.
The singular form of the demonstrative pronoun 'these' is this.
The singular form of "stratum" is "stratum." The word does not change in its singular form.
The singular form of scissors is "scissor."
The singular form of diagnoses is diagnosis.
Esophageal (oesophageal) is an adjective and so does not have singular and plural forms.
The singular form of the demonstrative pronoun 'these' is this.
The singular form of feet is foot.
The singular form of "hypothysis" is "hypothesis."
The singular form is ombudsman.
it is already in its singular form.
The singular form is hilum.
The singular form is money.
The singular form of "cuffs" is cuff.
The singular form in stimulus.
The singular form for the plural noun stories is story.
The singular form for the noun families is family. The singular possessive form is family's.