The form thorax it the singular; there are two accepted plural forms: thoraxes or thoraces.
Thorax is singular. Thoraces is plural.
Singular Plural is caterpillars
Steroids is plural. The singular form of the word is steroid.
The word crisis is singular. The plural form of crisis is crises.
Association is singular. Associations is plural.
Thoraces is plural. Thorax is singular.
Thorax is singular. Thoraces is plural.
Thorax (singular) Thoraxes (plural)
The most popular plural of the word "thorax" is "thoraxes."
The word team is singular; the plural form is teams.
These is plural, this is singular
Lance is singular. Lances is plural.
The word 'Phenomenon' is singular. The plural form is 'Phenomena'.
The word metastasis is singular, metastases is plural.
The word "ground" can be both singular and plural. Singular: "The ground is wet." Plural: "The grounds of the park are well-maintained."
Louse is singular. The plural form is lice.
No, the word "list" is singular. The plural form of "list" is "lists."