tˈɛknɪkli ðə kælˈɪbiəm ɪz ɐ nˈʌt, æz ɪts ˈoʊvɚɹi wˈɔːl bɪkˌʌmz dɹˈaɪ wɪððɪ ˈɛmbɹɪˌoʊ lˈuːsli ɛŋklˈoʊzd ɪnsˈaɪd, ænd ɹᵻmˈeɪnz klˈoʊzd ʌntˈɪl dʒˌɜːmᵻnˈeɪʃən.
Technically the calybium is a nut, as its ovary wall becomes dry with the embryo loosely enclosed inside, and remains closed until germination.