名詞 restorative:

1. a medicine that strengthens and invigorates
   同義詞：tonic
2. a device for treating injury or disease
   同義詞：corrective

形容詞 restorative:

1. tending to impart new life and vigor to
   同義詞：renewing, reviving, revitalizing, revitalising
2. promoting recuperation
   同義詞：recuperative

1. Nature has an exhilarative and restorative effect.
   大自然具有使人暢快并恢復體力的效果。
2. An invigorating, refreshing, or restorative agent or influence.
   增強物增加活力、精神或幫助恢復的物品或影響

re.stor.a.tive

adj.（形容詞）
Of or relating to restoration.
恢復的：屬于或與恢復有關(guān)的
Tending or having the power to restore:
有恢復作用的：傾向于或有恢復能力的：
例句：
a restorative tonic.
有恢復作用的滋補品

n.（名詞）
Something that restores.
使恢復的東西
A medicine or other agent that helps to restore health, strength, or consciousness.
恢復藥：有助于恢復健康、力量或知覺的藥物或其它媒劑

【引伸】
restor.atively
adv.（副詞）
restor.ativeness
n.（名詞）