patient, invalid

名詞 invalid:

1. someone who is incapacitated by a chronic illness or injury
   同義詞：shut-in

動詞 invalid:

1. force to retire, remove from active duty, as of firemen
2. injure permanently
   同義詞：disable, incapacitate, handicap

形容詞 invalid:

1. having no cogency or legal force
2. no longer valid

1. His claim to ownership is invalid.
   他的所有權(quán)是無效的。
2. Nobody looks after the invalid.
   沒人照顧這個病人。
3. The girl spent all her spare time to take after her invalid mother.
   這個女孩把她所有的業(yè)余時間都用來照顧長期生病的母親。
4. This ticket has passed its expiration date, and so it is now invalid.
   這張票已過了有效期，現(xiàn)在作廢了。
5. He never fully recovered, and had to spend the rest of his life as an invalid.
   他沒能完全康復(fù)，于是不得不成了一名殘疾者度過余生。

invalid

n.（名詞）
One who is incapacitated by a chronic illness or disability.
病人：由于慢性病或殘疾引起無能力的人
adj.（形容詞）
Incapacitated by illness or injury.
有病的：由疾病或傷殘造成的無能力的
Of, relating to, or intended for invalids.
供病人用的：屬于、關(guān)于、或為病人打算的
v.tr.（及物動詞）
in.va.lid.ed,in.va.lid.ing,in.va.lids
To incapacitate physically.
使病弱：使體質(zhì)上無力
Chiefly British To release or exempt from duty because of ill health:
【多用于英國】 使因病退役：因為身體不好解除或免除責任：
例句：
.I was not quite sick enough to be invalided out, even though I was of no more use.(Mary Lee Settle)
.即使我不再有用處，還不至病得嚴重到可以免除義務(wù).(瑪麗·李·塞托)

來源：
From invalid 2 influenced by French invalide [sickly, infirm] from Latin invalidus
源自 invalid2 受 法語 invalide的影響 [有病的，體弱的] 源自 拉丁語 invalidus

invalid
invalid 2

adj.（形容詞）
Not legally or factually valid; null:
無效的：法律上或事實上是無效的；無束縛力的：
例句：
an invalid license.
作廢的執(zhí)照

Falsely based or reasoned; faulty:
無效果的：根據(jù)或推理錯誤的；有錯誤的：
例句：
an invalid argument.
錯誤的辯論

來源：
Latin invalidus [weak]
拉丁語 invalidus [弱的]
in- [not] * see in-
in- [不] *參見 in-
validus [strong] from valôre [to be strong] * see wal-
validus [強的] 源自 valôre [變強大的] *參見 wal-

【引伸】
in.valid.ity
inval.idly
adv.（副詞）