PENT A STOMA

(Lat.), n. n. Peant-a2sfa!st)'o2m-as. Gen., -stom'atos (-at is). From irevrt, five, and ord/ua, the mouth. Fr., pent as to me. Ger., Funfmund. A genus of the Acaridce. [L.] P. coarctatuin. See TENIA solium.P. constrictum. Fr., pent as to me etreint. A species sometimes found in the liver of negroes and encysted in the abdominal cavity. It is about 6 lines long and 1 line wide, with a cylindrical body furnished with four claws and a blunt tail. [L, 17.] P. denticulatum. Fr., pent as to me denticule. The larval stage of P. tcenioides, also of a separate variety; of Rudolphi, the P. tcenioides. It is fov nd encysted in the ox and some other animals, and sometimes invades the human body. [L, 15, 17, 18.] P. emarginatum. See P. tcenioides. F. ferum. See P. denticulatum. P. serratum. See P. denticulatum and P. tcenioides.. tsenioides. A species the female of which is 3 to 4 in. long and i in. wide, the male being 8 to 10 lines long and J in. wide. The head is truncated and the mouth broad with a horny lip. There are four feet on the anterior segments of the body, which is marked by transverse rings and is flattened at the ventral surface. This parasite is found in man in the larval condition only. In the mature stage it inhabits the nostrils and frontal sinuses of the dog and wolf. [L.] PENT A SULPH1DE, n. Pe2nt-a3-su3lf'iad(id). A sulphur compound analogous to a pent a bromide (q. v.). [BJ PENT A THE TON (Lat.), PENT A THE TUM: (LaU, n's n. Peant-a2th(a3th)'e2t-o2n, -U3m(u4m). Gr., Trfvrdeerov (from irevre, five, and ndevcu, to place). Of Aetius, a certain plaster used for bruises, etc. [A, 325 (a, 48).] PENT A THIONIC ACII>, n. Peant-a3-thi-o2n'i2k. Fr., acidc pent at hi on i que (ou hypo sulfur i que trisulfure). Ger., Pen tath ions a ure. A dibasic acid, H-,S5O,,. [B.] [s. 234]