Not i dan ide (not i dan ide)

pl. [NL., IMG:content-1470.png:[blocks in formation] six or seven gill-sacs, spiracles, one dorsal fin, no winker or third eyelid, and differentiated teeth, the lower being mostly broad and with an oblique dentate border, while the upper are awl-shaped or paucidentate. Some attain a length of 15 feet, and range widely in tropical and warm temperate seas. See Heptanchus and Hexanchus. Also called Not i dan i, Notidanoidæ, and Hex an chide, not i dan i dan (no-ti-dan'i-dan), n. [ notifiable (nō'ti-fi-a-bl), a. [ The death-rates from notifiable diseases being respectively 1.05 and 1.01. Lancet , No. 3446, p. 565.