noun |
adj |
verb |
adv |
(adj) basal
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
(used of opinions and actions) far beyond the norm
extremist political views; radical opinions on education; an ultra conservative
(adj) revolutionary
markedly new or introducing radical change
a revolutionary discovery; radical political views
(noun) stem, theme, base, root, root word
(linguistics) the form of a word after all affixes are removed
thematic vowels are part of the stem
(noun) group, chemical group
(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
(noun) free radical
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