The plural of sinus is sinuses.
The only likely word is the plural "treetops" (the upper limbs of trees).
The plural of trick is tricks.
The noun cot has a regular plural, cots.
The plural form of the noun torches. The plural possessive form is torches'.Example: After dark, the torches' lights of many skiers twinkled down the mountain.
The plural of sinus is sinuses.
Sinus- is the root word for sinusitis. The suffix -itis refers to inflammation.
Sinus
The word crises is a plural word; it is the plural form of the word crisis.
Sin is a root word meaning sinus
sinus
There is no plural word for if.
The plural word for delay is delays.
well the definition of the word Lavage means to "wash out an organ" so lavage of the maxillary sinus mean to wash out the maxillary sinus.
A non-plural word, a word (noun or pronoun) that is not plural is singular, a word for just one.
the plural word is comedones
No it's a singular word. A plural word would be "have".