What does brachyūrus mean in Latin?

brachyūrus, a adjective, means “Having a short tail.”.

adjectivefirst/second-declension adjective

brachyūrus

brachyūrus (feminine brachyūra, neuter brachyūrum)

brachyūra sg. nom. f.; pl. nom. n.; pl. acc. n.; sg. abl. f.; sg. voc. f.; pl. voc. n.

singular
form	masculine	feminine	neuter
nominative	brachyūrus	brachyūra	brachyūrum
genitive	brachyūrī	brachyūrae	brachyūrī
dative	brachyūrō	brachyūrae	brachyūrō
accusative	brachyūrum	brachyūram	brachyūrum
ablative	brachyūrō	brachyūrā	brachyūrō
vocative	brachyūre	brachyūra	brachyūrum

plural
form	masculine	feminine	neuter
nominative	brachyūrī	brachyūrae	brachyūra
genitive	brachyūrōrum	brachyūrārum	brachyūrōrum
dative	brachyūrīs	brachyūrīs	brachyūrīs
accusative	brachyūrōs	brachyūrās	brachyūra
ablative	brachyūrīs	brachyūrīs	brachyūrīs
vocative	brachyūrī	brachyūrae	brachyūra

From Ancient Greek βραχύουρος (brakhúouros, “short-tailed”), from βραχύς (brakhús, “short”) + οὐρά (ourá, “tail”).