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1. a turtle, typically a herbivorous one that lives on land.

〘動〙 (陸生の)カメ(→ turtle)

informal anything exceptionally slow-moving:

動きがのろい人［物］

e.g. you are a tortoise on the uptake today.

2. another term for testudo.

tortoiselike |-ˌlīk| adjective & adverb

late Middle English tortu, tortuce: from Old French tortue and Spanish tortuga, both from medieval Latin tortuca, of uncertain origin. The current spelling dates from the mid 16th century.