In my Oxford Advanced Learner's Dictionary the word 'throe' is not listed, only 'throes'. With other nouns, the dictionary clearly indicates whether nouns are countable or uncountable, however, with 'throes' it only indicates that it is plural.
I am sitting with a term paper in which I have to comment on the countability and number of a set of given nouns from a text. 'Throes' is one of these words and although it is 'death throes' in the context ('This sudden burst of activity was actually the Expedit in its death throes')only 'throes' is underlined as the one I should comment on.
Is the word 'throes' simply neither countable or uncountable? Is that possible? Or why does my dictionary not indicate it, as if it does not know it either? Has it something to do with 'death throes' being part of an idiom? I am unsure of the word and how I should comment. Hope someone can help me :)