chiasm (kiazm)

[ two lines cro ed as in the lettere, the letter X, X, chi, represented by L. ch, in form by L. X, x. Cf. decu ate.] In an at., a decu ation or intersection; specifically, the decu ation of the optic nerves which occurs in nearly all vertebrates. See second cut under brain. The optic chiasm doubtle is a sign of some kind of sym pathetic relation between the two eyes; but whether this ing points is uncertain. nece arily reaches the degree which produces correspondLe Conte, Sight, p. 262. chiasma (ki-az'mā), n.; pl. chiasmata (-ma-tä). [NL.] Same as chiasm. Mex.] The name in Cuba of the fruit of the Chias mod on, Chias modus (ki-as'mō-don, Sechium edule, a cucurbitaceous plant. It is much used as a vegetable. Also choco, chocho. cheyotilla (Sp. pron. chā-yō-telyä), n. [Mex., dim. of cheyote.] A cucurbitaceous plant of Mexico, Hanburia Mexican a, bearing a four seeded spiny fruit of the size of an orange, which at maturity bursts suddenly and throws the seeds to a considerable distance. chia (che'ä), n. [Sp. chia , the lime-leafed sage, Salvia til iæfolia .] The name among the In- dians of Mexico and Arizona of several species of Salvia , especially S. Columbariæ , the seeds of which are used for making a pleasant muci- laginous drink, and also as food. Chian (ki'an), a . [L. Chius (Gr. Xios ), pertain- ing to Chios , Chios , Chius , Gr. Χίος , Chios, now Scio .] Pertaining to Chios, an island in the Ægean sea, now belonging to Turkey. That blind bard, who on the Chian strand... Beheld the Iliad and the Ody ey Rise to the swelling of the voiceful sea. Cole ridge, Fancy in Nubibus. Chian earth, a dense compact kind of earth from Chios, used anciently in medicine as an astringent and as a cosmetic.- Chian or Cyprus turpentine, turpentine procured from the Pistacia Terebinth us. It is of the consistence of honey, clear, and yellowish-white. Chianti (ke-an'ti), n. [It.] Properly, a red wine of Tuscany, grown in the region between Siena and Arezzo; as used in Great Britain and the United States, any dry red wine of Tuscany, or any Italian wine of different color which has