節 足(せっそく)動 物(どうぶつ)

せっそくどうぶつ

noun

arthropod

1. arthropod; jointed-legged invertebrate

An invertebrate animal with a hard external skeleton and jointed legs. The group includes insects, spiders, crustaceans, and centipedes.

昆虫(こんちゅう)は節足(せっそく)動物(どうぶつ)だ。

Insects are arthropods.

エビやカニも節足(せっそく)動物(どうぶつ)だ。

Shrimp and crabs are also arthropods.

Arthropods are the most species-rich group of animals on Earth.

Composed of 節足(せっそく) (jointed legs) + 動物(どうぶつ) (animal). A biology term for invertebrates with a hard exoskeleton and segmented, jointed legs.

無脊椎(むせきつい)動物(どうぶつ): invertebrate — the broader category to which 節足(せっそく)動物(どうぶつ) belongs
外骨格(がいこっかく): exoskeleton — the hard outer covering of an arthropod

Related Words

general

Added 2026.5.18 12:04 · Revised 2026.9.2 13:02

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