combining form of Gr. χόνδρο-ς a grain, cartilage, used as the first element in many words, chiefly Med. and Phys., as Chondro-costal a., ‘relating to the ribs and the costal cartilages’ (Syd. Soc. Lex.). Chondrogen [see -GEN2] = Chondrin, or ‘the tissues that yield chondrin.’ Chondrogenesis, the development of cartilage. Chondroglossus [Gr. γλώσσα tongue], a fasciculus of muscular fiber extending from the lesser corner of the hyoid bone to the tongue; part of the hypoglossus muscle. Chondroglucose [see GLUCOSE], a sugar obtained from cartilage; also chondriglucose. Chondrography [Gr. -γραφία writing], a description of cartilages. Chondrology [Gr. -λογία discourse], ‘a discourse or treatise on cartilages’ (Hooper, Med. Dict., 1811). Chondrometer [Gr. μέτρον measure], a steelyard for weighing grain. Chondrophyte [Gr. φυτόν plant], ‘a growth, tumour, or vegetation, arising from a cartilage’ (Syd. Soc. Lex.). Chondroplast [Gr. πλαστ-ός formed, molded], ‘a term applied to the cavities in the matrix of cartilage which contain the cartilage cells’ (Syd. Soc. Lex.). Chondropodous a. Zool., applied to snakes, having the rudiment of a foot consisting in a simple cartilaginous filament (Syd. Soc. Lex.). Chondro-skeleton, cartilaginous skeleton. Chondro-sternal a., relating to the sternum and to the cartilages of the ribs. Chondrotome [Gr. -τομος cutting, cutter], a knife for dissecting cartilage. Chondrotomy [Gr. -τομία cutting], dissection or cutting of cartilage. Chondroxiphoid a., relating to the xiphoid cartilage at the bottom of the breast bone.
c. 1865. in Circ. Sc., I. 360/2. The bones of the infant yield gelatine of cartilages or ‘chondrogen.’
1876. trans. Wagner’s Gen. Pathol., 333. The transformation of collagen and chondrogen into mucus or mucin.
1879. Watts, Dict. Chem., VI. 449, s.v. Chondrin, Pure rib-cartilage boiled with strong hydrochloric acid yields a sugar…. De Bary … designates the sugar thus obtained as chondroglucose.
1881. P. M. Duncan, in Academy, 23 April, 303. The chondro-skeleton is now complete.
1859. Todd, Cycl. Anat., V. 177/2. The chondro-sternal ligaments. Ibid. The superior pubic ligament finds its homologue … in the chondro-xiphoid … fibres.
