名詞 cocoon:

1. silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs

動詞 cocoon:

1. retreat as if into a cocoon, as from an unfriendly environment
2. wrap in or as if in a cocoon, as for protection

1. Most worms cocoon in winter.
   冬天多數蟲子作繭。
2. The children tore the cocoon open to see if there was a pupa.
   孩子們撕開蠶繭看看里面有沒有蛹。
3. Silkworms make cocoons.
   蠶做繭。
4. A cocoon is a kind of silk covering made by an insect.
   蠶繭是由昆蟲制造的一種由絲組成的外包層。

co.coon

n.（名詞）

A protective case of silk or similar fibrous material spun by the larvae of moths and other insects that serves as a covering for their pupal stage.
繭：纖維或類似纖維材料的保護殼，由蛾或其他昆蟲的幼蟲做成，作為其蛹階段的覆蓋物
A similar natural protective covering or structure, such as the egg case of a spider.
繭狀物：類似的自然保護覆蓋層或結構，例如蜘蛛的蛋殼
A protective plastic coating that is placed over stored military or naval equipment.
塑料披蓋：一種塑料保護涂層，覆蓋在備用的軍用或海上設備上
Something suggestive of a cocoon in appearance or purpose:
某物在外形或目的上暗示為繭：
例句：
.a congressionally mandated process that will gradually strip these institutions of a cocoon of regulations.(Edward Meadows)
.國會委任程序將逐漸層層剝去這些機關規(guī)章的外殼.(愛德華·梅多斯)

v.（動詞）
co.cooned,co.coon.ing,co.coons
v.tr.（及物動詞）
To envelop in or as if in a cocoon, as for protection from a harsh or unfriendly environment.
包圍：包圍在或好象包圍在繭中，如在嚴峻的和非友好的環(huán)境中得到保護
v.intr.（不及物動詞）
To retreat as if into a cocoon, as for security from a harsh or unfriendly environment.
隱蔽：好象撤退到繭中，如在嚴峻的和非友好的環(huán)境中得到安全

來源：
French cocon
法語 cocon
from Provenôal coucoun [diminutive of] coco [shell]
源自 普羅旺斯語 coucoun [] coco的小后綴 [外殼]
from Late Latin coccum
源自 后期拉丁語 coccum
from Latin [berry, oak gall]
源自 拉丁語 [卵，橡五倍子蟲]
from Greek kokkos [seed, berry]
源自 希臘語 kokkos [種子，干種子]