Irruption

ir-rup's hun, n. A breaking, or sudden, I violent rushing into a place; a suddejt incursion. — i Irrup'tive, -tiv, a. Rushing in or upon. nat-! Is, iz, v. i. The 3d pers. sing, of the substantive verb, rec in the indicative mood, present tense. anom- Isagon, fsa-gon, n. (Math.) A figure whose angles; disare equal. — I's ochromatlc, -kro-matlk, a. (0)>t.) I Having the same color, — applied to 2 rings, curves, or lines, having the same color or tint.— Isoch'ronal, -soklo-nal, -ronous, -nus, a. Uniform in time: of irregequal time: performed in equal times. — Isomet'ric, form, -rical, o. Pert, to, or characterized by, equality of an measure. — Isometrical projection. A method of dewithlineating machines, buildings, etc., in which the ground-plan and elevations are shown in one view, 3 planes being projected at apan equal angle upon a single plane. — — ir- I's opod, -so-pod, n. (ZooV) A species con of crustacean whose _legs are alike. — — IsosOeles, -sos'se-lez. a. (Geom.) Having only 2 legs or sides that are impi-; pro equal, — said of a triangle. See Triangle.— 1'sotb.enn, -therm, n. (Phys. Xot — Geog.) An imaginary line over the; imearth's surface pa ing through points having the same mean annual tem- Irreperature. — Isothernfal, a. Having rereference to the geographical distribution of temperature, as exhibited by means of isotherms: having the nature Isopod. Incaof an isotherm; illustrating the distribution of temperature by means of a series of isotherms.