invertebrate
(transitive) To make democratic again.
Ancestral.
An animal without vertebrae, i.e. backbone. / (informal) A spineless person; a coward.
(countable) A cage to keep pet or zoological specimen birds in. / (uncountable) A game of chance played with dice; chuck-a-luck.
生物学者は顕微鏡でその小さな無脊椎動物を注意深く観察し、珍しい付属肢に注目した。
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