形容詞 auricular:

1. of or relating to near the ear
   同義詞：otic
2. relating to or perceived by or shaped like the organ of hearing
3. pertaining to an auricle of the heart

au.ric.u.lar

adj.（形容詞）
Of or relating to the sense of hearing or the organs of hearing.
聽覺的：屬于或關(guān)于聽覺或聽覺器官的
Perceived by or spoken into the ear:
耳語的：在耳旁告知或私語相告的：
例句：
an auricular confession.
耳語的懺悔

Shaped like an ear or an earlobe; having earlike parts or extensions.
耳形的：形狀類似耳或耳廓的；有著耳形部分或延展的
Of or relating to an auricle of the heart:
心房的：屬于或關(guān)于心房的：
例句：
auricular fibrillation.
心房纖維性顫動

來源：
Middle English auriculer [spoken into the ear]
中古英語 auriculer [耳語]
from Late Latin auricul3ris
源自 后期拉丁語 auricul3ris
from Latin auricula [ear] * see auricle
源自 拉丁語 auricula [耳] *參見 auricle

【引伸】
auric.ularly
adv.（副詞）