declension
/dɪˈklenʃn; dɪ`klɛnʃən/ n
(grammar)
(a) [U] varying the endings of nouns and pronouns according to their function in a sentence （名词和代词在句中的）词尾变化. Cf 参看 case1 8.
(b) [C] class of words with the same range of endings for the different cases (case1 8) 在各格中词尾同形的一类词
In Latin, the nominative case of first declension nouns ends in `a'. 在拉丁文中, 属於第一类词形变化的名词的主格以a结尾.