Envelope.
The noun pleura is the singular form as a word for a membrane that envelopes the lungs of mammals.The plural noun is pleurae.The noun pleura is the plural form as a word for an insect body part.The singular noun is pleuron.
Envelopes.
The singular form of feet is foot.
The singular form is hilum.
Envelope.
The noun pleura is the singular form as a word for a membrane that envelopes the lungs of mammals.The plural noun is pleurae.The noun pleura is the plural form as a word for an insect body part.The singular noun is pleuron.
Envelopes.
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.
The singular form is hilum.
The singular form of "cuffs" is cuff.
The singular form is money.
it is already in its singular form.
The singular form in stimulus.