| • |
Of or pertaining to the root; proceeding directly from the
root. |
| • |
Hence: Of or pertaining to the root or origin; reaching to
the center, to the foundation, to the ultimate sources, to the
principles, or the like; original; fundamental; thorough-going;
unsparing; extreme; as, radical evils; radical reform; a radical party. |
| • |
Belonging to, or proceeding from, the root of a plant; as,
radical tubers or hairs. |
| • |
Proceeding from a rootlike stem, or one which does not
rise above the ground; as, the radical leaves of the dandelion and the
sidesaddle flower. |
| • |
Relating, or belonging, to the root, or ultimate source of
derivation; as, a radical verbal form. |
| • |
Of or pertaining to a radix or root; as, a radical
quantity; a radical sign. See below. |
| • |
A primitive word; a radix, root, or simple, underived,
uncompounded word; an etymon. |
| • |
A primitive letter; a letter that belongs to the radix. |
| • |
One who advocates radical changes in government or social
institutions, especially such changes as are intended to level class
inequalities; -- opposed to conservative. |
| • |
A characteristic, essential, and fundamental constituent
of any compound; hence, sometimes, an atom. |
| • |
Specifically, a group of two or more atoms, not completely
saturated, which are so linked that their union implies certain
properties, and are conveniently regarded as playing the part of a
single atom; a residue; -- called also a compound radical. Cf. Residue. |
| • |
A radical quantity. See under Radical, a. |
| • |
A radical vessel. See under Radical, a. |
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