THREAD

n. Thread. Lat., filum. Fr., fil. Ger.. Faden. A very slender cord, a filament, [a, 48.] Achromatic t's, Cell-t's. See Achromatic FIBRILS. Central ependymal t. See SUBS TANTI A gelati nos a central is. Chromatic t's. See Nuclear FIBRILS. Daughter t's. See Daughter NUCLEI. Mycelial t's. The hyphse of the mycelium, [a, 35.] Nucleus-communication-t. Of Mayer, the t.-like band connecting the two nuclei of a sympathetic-nerve cell whenever there are two. [J, 35.] Primary (chromatic, or chrotnatin) t's. See Primary FIBRES. Protoplasm a-t's. Delicate t's or strings of protoplasm, such as those pa ing from the follicular epithelium through the vitelline membrane in the ova of some fishes. [J, 35.] Secondary (chromatic, chrotnatin, or nuclear) t's. See Secondary chromatic FIBRES. T.-indicator. See under AUXANOMETER. [s. 620]