Part 13

In politics they [the Independents] were, to use the phrase of their own time, "Root-and-Branch men," or, to use the kindred phrase of our own, Radicals.

Macaulay.

3. (Chem.) (a) A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom.

As a general rule, the metallic atoms are basic radicals, while the nonmetallic atoms are acid radicals.

J. P. Cooke.

(b) 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.

4. (Alg.) A radical quantity. See under Radical, a.

An indicated root of a perfect power of the degree indicated is not a radical but a rational quantity under a radical form.

Davies & Peck (Math. Dict.)

5. (Anat.) A radical vessel. See under Radical, a.

Rad"i*cal*ism (-z'm), n. [Cf. F. radicalisme.] The quality or state of being radical; specifically, the doctrines or principles of radicals in politics or social reform.

Radicalism means root work; the uprooting of all falsehoods and abuses.

F. W. Robertson.

Rad`i*cal"i*ty (-kl"*t), n. 1. Germinal principle; source; origination. [Obs.] Sir T. Browne.

2. Radicalness; relation to a root in essential nature or principle.

Rad"i*cal*ly (rd"*kal*l), adv. 1. In a radical manner; at, or from, the origin or root; fundamentally; as, a scheme or system radically wrong or defective.

2. Without derivation; primitively; essentially. [R.]

These great orbs thus radically bright.

Prior.

Rad"i*cal*ness, n. Quality or state of being radical.

Rad"i*cant (-kant), a. [L. radicans, p. pr.: cf. F. radicant. See Radicate, a.] (Bot.) Taking root on, or above, the ground; rooting from the stem, as the trumpet creeper and the ivy.

Rad"i*cate (-kt), a. [L. radicatus, p. p. of radicari to take root, fr. radix. See Radix.] Radicated.

Rad"i*cate (-kt), v. i. To take root; to become rooted. Evelyn.

Rad"i*cate, v. t. [imp. & p. p. Radicated (-k`td); p. pr. & vb. n. Radicating.] To cause to take root; to plant deeply and firmly; to root.

Time should . . . rather confirm and radicate in us the remembrance of God's goodness.

Barrow.

Rad"i*ca`ted (-k`td), a. Rooted; specifically: (a) (Bot.) Having roots, or possessing a well-developed root. (b) (Zoöl.) Having rootlike organs for attachment.

Rad`i*ca"tion (-k"shn), n. [Cf. F. radication.] 1. The process of taking root, or state of being rooted; as, the radication of habits.