Why was "tantrum" trending last week?
c.1300, braunch, "limb of a tree" (also used of things analogous to it, especially geographic features), from Old French branche "branch, bough, twig; branch of a family" (12c.), from Late Latin branca "footprint," later "a claw, paw," of unknown origin, probably from Gaulish. The connecting notion would be the shape (cf. pedigree). Replaced native bough. Meaning "local office of a business" is first recorded 1817, from earlier sense of "component part of a system" (1690s).
"send out shoots or new limbs," late 14c., also, of blood vessels, family trees, etc., "to be forked," from branch (n.). Meaning "to spread out from a center, radiate" is from c.1400. Related: Branched; branching.
An offshoot or a division of the main portion of a structure, especially that of a nerve, blood vessel, or lymphatic vessel; a ramus.
a symbol of kings descended from royal ancestors (Ezek. 17:3, 10; Dan. 11:7); of prosperity (Job 8:16); of the Messiah, a branch out of the root of the stem of Jesse (Isa. 11:1), the "beautiful branch" (4:2), a "righteous branch" (Jer. 23:5), "the Branch" (Zech. 3:8; 6:12). Disciples are branches of the true vine (John 15:5, 6). "The branch of the terrible ones" (Isa. 25:5) is rightly translated in the Revised Version "the song of the terrible ones," i.e., the song of victory shall be brought low by the destruction of Babylon and the return of the Jews from captivity. The "abominable branch" is a tree on which a malefactor has been hanged (Isa. 14:19). The "highest branch" in Ezek. 17:3 represents Jehoiakim the king.
radioactive disintegration of a particular species of unstable atomic nucleus or subatomic particle that occurs by two or more different decay processes. Some nuclei of a given radioactive species may, for example, decay by ejecting an electron (negative beta decay) and the rest by ejecting an alpha particle (alpha decay). Thus, 64 percent of any collection of atoms of bismuth-212 decay to polonium-212 by ejecting electrons, while the rest (36 percent) decay to thallium-208 by ejecting alpha particles. The fraction decaying in a particular way is called the branching fraction or branching ratio.