Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
Tomography is regular. It follows the -ies Conversion rule.
Use plural verbs: "The tomographies are ready" (not "is ready").
Yes. The plural tomographies is standard across all English variants.
The word tomography follows the standard English pluralization rule. When forming the plural, tomography becomes tomographies. This follows the -ies Conversion pattern, which is one of the most common plural rules in English.
Understanding why tomography becomes tomographies helps with spelling and pronunciation. Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
When using tomographies in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The tomographies are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.