yearlingn. 一歲崽學術名詞一歲動物:生命科學、生態學一歲齡家畜:畜牧學羔羊:紡織科技周歲綿羊:紡織科技一年生苗:林學英文釋義a young child who is just beginning to walka racehorse considered one year old until the second Jan. 1 following its birthan animal in its second year