‖ n. pl. [ NL., fr. Gr. 'a`rqron joint + &unr_; a shell. ] (Zool.) One of the larger divisions of Crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipoda and Isopoda. [ 1913 Webster ]

{ } a. [ Pref. bi- + rostrate. ] Having a double beak, or two processes resembling beaks. [ 1913 Webster ]

The capsule is bilocular and birostrated. Ed. Encyc. [ 1913 Webster ]

{ } a. [ L. brevis short + E. rostral, rostrate. ] (Zool.) Short-billed; having a short beak. [ 1913 Webster ]

a. (Zool.) Belonging to the Conirostres. [ 1913 Webster ]

a. [ See Cultirostres. ] (Zool.) Having a bill shaped like the colter of a plow, or like a knife, as the heron, stork, etc. [ 1913 Webster ]

a. [ L. curvus + E. rostral. ] (Zool.) Having a crooked beak, as the crossbill. [ 1913 Webster ]

a. (Zool.) Having a toothed bill; -- applied to a group of passerine birds, having the bill notched, and feeding chiefly on insects, as the shrikes and vireos. See Illust. (N) under Beak. [ 1913 Webster ]

a. Dentirostral. [ 1913 Webster ]

a. Fully prostrate; humble; low; rude. [ Obs. ] [ 1913 Webster ]

How may weak mortal ever hope to file
His unsmooth tongue, and his deprostrate style. G. Fletcher. [ 1913 Webster ]

a. [ Pref. e- out + rostrate. ] (Bot.) Without a beak. [ 1913 Webster ]

a. [ Cf. F. fissirostre. ] (Zool.) Having the bill cleft beyond the horny part, as in the case of swallows and goatsuckers. [ 1913 Webster ]

a. [ Lamella + rostral : cf. F. lamellirostre. ] (Zool.) Having a lamellate bill, as ducks and geese. [ 1913 Webster ]

{ } a. [ Cf. F. latirostre. See Latirostres. ] (Zool.) Having a broad beak. Sir T. Browne. [ 1913 Webster ]

a. (Zool.) Having a long bill; of or pertaining to the Longirostres. [ 1913 Webster ]

a. (Zool.) Of or pertaining to the pressirosters. [ 1913 Webster ]

a. [ L. prostratus, p. p. of prosternere to prostrate; pro before, forward + sternere to spread out, throw down. See Stratum. ] 1. Lying at length, or with the body extended on the ground or other surface; stretched out; as, to sleep prostrate. Elyot. [ 1913 Webster ]

Groveling and prostrate on yon lake of fire. Milton. [ 1913 Webster ]

2. Lying at mercy, as a supplicant. Dryden. [ 1913 Webster ]

3. Lying in a humble, lowly, or suppliant posture. [ 1913 Webster ]

Prostrate fall
Before him reverent, and there confess
Humbly our faults. Milton. [ 1913 Webster ]

4. (Bot.) Trailing on the ground; procumbent. [ 1913 Webster ]

v. t. [ imp. & p. p. Prostrated p. pr. & vb. n. Prostrating. ] 1. To lay fiat; to throw down; to level; to fell; as, to prostrate the body; to prostrate trees or plants. Evelyn. [ 1913 Webster ]

2. to overthrow; to demolish; to destroy; to deprive of efficiency; to ruin; as, to prostrate a village; to prostrate a government; to prostrate law or justice. [ 1913 Webster ]

3. To throw down, or cause to fall in humility or adoration; to cause to bow in humble reverence; used reflexively; as, he prostrated himself. Milman. [ 1913 Webster ]

4. To cause to sink totally; to deprive of strength; to reduce; as, a person prostrated by fever. [ 1913 Webster ]

n. [ L. prostratio: cf. F. prostration. ] 1. The act of prostrating, throwing down, or laying fiat; as, the prostration of the body. [ 1913 Webster ]

2. The act of falling down, or of bowing in humility or adoration; primarily, the act of falling on the face, but usually applied to kneeling or bowing in reverence and worship. [ 1913 Webster ]

A greater prostration of reason than of body. Shak. [ 1913 Webster ]

3. The condition of being prostrate; great depression; lowness; dejection; as, a postration of spirits. “A sudden prostration of strength.” Arbuthnot. [ 1913 Webster ]

4. (Med.) A latent, not an exhausted, state of the vital energies; great oppression of natural strength and vigor. [ 1913 Webster ]

☞ Prostration, in its medical use, is analogous to the state of a spring lying under such a weight that it is incapable of action; while exhaustion is analogous to the state of a spring deprived of its elastic powers. The word, however, is often used to denote any great depression of the vital powers. [ 1913 Webster ]

a. [ Recti- + rostral. ] (Zool.) Having a straight beak. [ 1913 Webster ]

a. [ See Recurviroster. ] (Zool.) Having the beak bent upwards. [ 1913 Webster ]

n. pl. See Rostrum, 2. [ 1913 Webster ]

a. [ L. rostralis, fr. rostrum a beak; cf. F. rostral. ] Of or pertaining to the beak or snout of an animal, or the beak of a ship; resembling a rostrum, esp., the rostra at Rome, or their decorations. [ 1913 Webster ]

[ Monuments ] adorned with rostral crowns and naval ornaments. Addison. [ 1913 Webster ]

{ , a. [ L. rostratus, fr. rostrum a beak. See Rostrum. ] 1. Having a process resembling the beak of a bird; beaked; rostellate. [ 1913 Webster ]

2. Furnished or adorned with beaks; as, rostrated galleys. [ 1913 Webster ]

a. [ Serrate + rostral. ] (Zool.) Having a toothed bill, like that of a toucan. [ 1913 Webster ]

a. (Zool.) Thin-billed; -- applied to birds with a slender bill, as the humming birds. [ 1913 Webster ]