Lewis & Short

quā̆drŭpēs (quā̆drĭpes), pĕdis

    (
  1. I. gen. plur. quadrupedium, Capitol. Ver. 5, 2), adj. [quattuor-pes], having four feet, going on four feet; esp.,
    1. A. Galloping (post-Aug.): ecus, Enn. ap. Gell. 18, 5, 4; cf. Macr. S. 6, 9, 10: equestri celeritate, quadrupedi cursu solum replaudens, App. M. 6, p. 185, 7.
      Transf.: dum certum flectit in orbem Quadrupedis cursus, Ov. M. 6, 226.
    2. B. Of persons, on all fours, creeping, going on hands and feet: atque audin? quadrupedem constringito, so that he can only move on all fours, Ter. And. 5, 2, 24: mox quadrupes (infans) rituque tulit sua membra ferarum, Ov. M. 15, 222: homines … bestiarum more quadrupedes coërcuit, Suet. Calig. 27; id. Ner.48.
  2. II. Subst.: quā̆drŭpēs, ĕdis, m., f., and n., a quadruped, four-footed creature.
    1. A. Masc., mostly of beasts of draught or burden; v. Quint. 8, 6, 20: calcari quadrupedem agitabo advorsum clivum, Plaut. As. 3, 3, 11: reprime parumper vim citatūm quadrupedum, Att. ap. Non. 495, 20: quadrupedum vectiones, quorum, etc., Cic. N. D. 2, 60, 151: de omnibus quadrupedibus … qui idonei sunt, etc., Varr. R. R. 1, 20, 1; Verg. A. 11, 714: saucius quadrupes, id. ib. 7, 500.
      Contemptuously (opp. bipes), Cic. Dom. 18, 48: nihil inter te atque inter quadrupedem interesse, id. Par. 1, 3, 14: quadrupes nequissime, App. M. 7, p. 200, 10.
    2. B. Fem. (sc. bestia): ducite eo mutas quadrupedes, Naev. ap. Non. p. 924 (Trag. Rel. v. 28 Rib.): si quamvis quadrupedem serpens momorderit, Cato, R. R. 102; Enn. ap. Non. p. 407, 22 (Trag. Rel. v. 219 Vahl.): quadrupes tardigrada, Pac. ap. Cic. Div. 2, 64, 133 (Trag. Rel. v. 2 Rib.): quadrupes qua vasta tenetur, Cic. N. D. 2, 44, 114; Varr. L. L. 7, § 39 Müll.; Verg. E. 5, 26: sollicitari quadripedes cunctas, Plin. 8, 17, 23, § 62.
    3. C. Neutr. (sc. animal): cetera quadrupedia, Col. 11, 2, 33: majora, id. 11, 2, 14: crocodilum, quadripes malum et infestum, Plin. 8, 25, 37, § 89: plurima autem obruerit quadrupedia, Jul. Val. Rer. Gest. Alex. 3, 36.