Isogamy, ī-sog′a-mi, n. (bot.) the conjugation of two protoplasmic masses not clearly differentiated into a male and female element.—adj. Isog′amous. [Gr. isos, equal, gamos, marriage.]
Isogeny, ī-soj′e-ni, n. likeness of origin, a general homology.—adj. Isog′enous. [Gr. isos, equal, genos, kind.]
Isogeothermal, ī-so-jē-o-thėr′mal, adj. of imaginary lines beneath the earth's surface through points having the same degree of heat. [Gr. isos, equal, gē, the earth, thermē, heat—thermos, hot.]
Isognathous, ī-sog′na-thus, adj. having the molar teeth alike in both jaws. [Gr. isos, equal, gnathos, the jaw.]
Isogon, ī′so-gon, n. a figure having equal angles. [Gr. isos, equal, gonia, an angle.]
Isogonic, ī-so-gon′ik, adj. exhibiting Isog′onism, or the production of like generative individuals from differing stocks, as in certain hydroids. [Gr. isos, equal, gonos, offspring.]
Isohyetal, ī-so-hī′e-tal, n. an imaginary line connecting places which have an equal annual rainfall. [Gr. isos, equal, hyetos, rain.]
Isolate, ī′so-lāt, or is′o-lāt, v.t. to place in a detached situation, like an island.—adj. Is′olable (chem.), capable of being separated from any other substance: capable of being obtained pure.—n. Isolā′tion. [It. isolare—isola—L. insula, an island.]
Isomerism, ī-som′er-izm, n. the relation between chemical compounds which are identical in their ultimate or percentage composition, but present difficulties in their chemical properties.—adjs. Isomer′ic, Isom′erous. [Gr. isos, equal, meros, part.]
Isometric, -al, ī-so-met′rik, -al, adj. having equality of measure. [Gr. isos, equal, metron, measure.]