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词汇 pilidium
释义

Definition of pilidium in English:

pilidium

noun pʌɪˈlɪdɪəm
  • Zoology. Also †Pilidium. The early, free-swimming, cap-shaped larva of nemertean worms of the order Heteronemertea (formerly thought to be a distinct genus).

Origin

Mid 19th century (in an earlier sense). Ultimately from ancient Greek πιλίδιον little cap from πῖλος felt cap + -ίδιον. In sense 1, via French pilidium. In sense 2, via scientific Latin Pilidium, genus name.

Definition of pilidium in US English:

pilidium

nounpʌɪˈlɪdɪəm
  • Zoology. Also †Pilidium. The early, free-swimming, cap-shaped larva of nemertean worms of the order Heteronemertea (formerly thought to be a distinct genus).

Origin

Mid 19th century (in an earlier sense). Ultimately from ancient Greek πιλίδιον little cap from πῖλος felt cap + -ίδιον. In sense 1, via French pilidium. In sense 2, via scientific Latin Pilidium, genus name.

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