S: (n) free radical (free_radical%1:27:00::), radical (radical%1:27:02::) (an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule) "in the body free radicals are high-energy particles that ricochet wildly and damage cells"
S: (adj) radical (radical%3:00:00:basic:00) (arising from or going to the root or source) "a radical flaw in the plan"
S: (adj) radical (radical%3:01:01::) (of or relating to or constituting a linguistic root) "a radical verb form"
S: (adj) radical (radical%3:00:00::), basal (basal%3:00:02::) (especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem) "basal placentation"; "radical leaves"