morituri
You, Marianna, CapK and Scribbler have, among you, managed to cover all the bases on this, and you have certainly stated the meaning. All I would add is that morituri may be strange due to the fact the morior is a deponent verb -- one of a class of bastard verbs which are conjugated as if they were in the passive mood but are actually in the active mood. (Then there are the semi-deponent verbs, a bunch of real bastards which act like deponent verbs only in certain tenses, and some of which have their direct object in the ablative case instead of the accusative. For my sins, I once had to memorize which ones those were, and after 45 years remember they are: utor, fruor, fungor, potior and vescor. Strange what useless stuff sticks in your memory when you have to memorize it in your youth. It's like the German prepositions which take the dative vs. those that take the accusative or the genitive, which I can also remember and reel off.