形容詞 hygienic:

1. tending to promote or preserve health
   同義詞：hygienical

1. A severe, often gangrenous inflammation of the mouth or genitals, occurring usually after an infectious disease and found most often in children in poor hygienic or malnourished condition.
   走馬疳，壞疽性口炎嘴或生殖器部分嚴(yán)重的經(jīng)常為生疽性的發(fā)炎，通常在感染了傳染病后發(fā)生，最常發(fā)病于衛(wèi)生條件極差或營養(yǎng)狀況不良的孩子

hy.gi.en.ic

adj.（形容詞）
Of or relating to hygiene.
衛(wèi)生學(xué)的：與衛(wèi)生學(xué)有關(guān)的，或?qū)儆谶@一范疇的
Tending to promote or preserve health.
保健的：利于提高健康或保持健康的
Sanitary.
衛(wèi)生的

【引伸】
hy.gien.ically
adv.（副詞）