海腸子

1. • marine worm resembling intestines such as the spoon worm (echiuroid) or the peanut worm (Sipunculus nudus)

     coll.

Character by character

• 海(hǎi)surname Hai
• 腸(cháng)intestines
• 子(zi)noun suffix, as in 椅子 yǐzi "chair"