radical : Idioms & Phrases

Index

acetyl radical

  • noun the organic group of acetic acid (CH3CO-)
    acetyl; acetyl group; acetyl radical; ethanoyl group.
WordNet

alcohol radical

  • noun the chemical group -OH
    alcohol group.
WordNet

aldehyde radical

  • noun the chemical group -CHO
    aldehyde group.
WordNet

alkyl radical

  • noun any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons
    alkyl; alkyl group.
WordNet

allyl radical

  • noun the univalent unsaturated organic radical C3H5; derived from propylene
    allyl group; allyl.
WordNet

azido radical

  • noun the univalent group N3- derived from hydrazoic acid
    azido group.
WordNet

azo radical

  • noun the bivalent group -N=N- united to two hydrocarbon groups
    azo group.
WordNet

benzoyl radical

  • noun the univalent radical derived from benzoic acid
    benzoyl group.
WordNet

benzyl radical

  • noun the univalent radical derived from toluene
    benzyl group; benzyl.
WordNet

cacodyl radical

  • noun the univalent group derived from arsine
    cacodyl; arsenic group; cacodyl group.
WordNet

Compound radical

  • . (Chem.) See Radical.
Webster 1913

cyanide radical

  • noun the monovalent group -CN in a chemical compound
    cyanide radical; cyanide group; cyano group.
WordNet

cyano radical

  • noun the monovalent group -CN in a chemical compound
    cyanide radical; cyanide group; cyano group.
WordNet

ethanoyl radical

  • noun the organic group of acetic acid (CH3CO-)
    acetyl; acetyl group; acetyl radical; ethanoyl group.
WordNet

ethyl radical

  • noun the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
    ethyl group; ethyl.
WordNet

free radical

  • noun 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
    radical.
    • in the body free radicals are high-energy particles that ricochet wildly and damage cells
WordNet

hydrazo radical

  • noun the bivalent group -HNNH- derived from hydrazine
    hydrazo group.
WordNet

hydroxyl radical

  • noun the monovalent group -OH in such compounds as bases and some acids and alcohols
    hydroxyl; hydroxyl group.
WordNet

methyl radical

  • noun the univalent radical CH3- derived from methane
    methyl; methyl group.
WordNet

methylene radical

  • noun the bivalent radical CH2 derived from methane
    methylene; methylene group.
WordNet

modified radical mastectomy

  • noun removal of a breast and the pectoralis minor and some lymph nodes in the adjacent armpit
WordNet

propyl radical

  • noun the monovalent organic group C3H7- obtained from propane
    propyl; propyl group.
WordNet

Radical axis of two circles

  • . (Geom.) See under Axis.
Webster 1913

radical cell

  • noun a cell of terrorists (usually 3 to 5 members)
    terrorist cell.
    • to insure operational security the members of adjacent terrorist cells usually don't know each other or the identity of their leadership
WordNet

radical chic

  • noun an affectation of radical left-wing views and the fashionable dress and lifestyle that goes with them
WordNet

radical hysterectomy

  • noun surgical removal of the uterus and the ovaries and oviducts and cervix and related lymph nodes
    panhysterectomy.
WordNet

radical mastectomy

  • noun removal of a breast and the underlying muscles (pectoralis major and pectoralis minor) and lymph nodes in the adjacent armpit
WordNet

Radical pitch

  • the pitch or tone with which the utterance of a syllable begins. Rush.
Webster 1913

Radical quantity

  • (Alg.), a quantity to which the radical sign is prefixed; specifically, a quantity which is not a perfect power of the degree indicated by the radical sign; a surd.
Webster 1913

Radical sign

  • noun a sign indicating the extraction of a root
WordNet
  • (Math.), the sign &root; (originally the letter r, the initial of radix, root), placed before any quantity, denoting that its root is to be extracted; thus, &root;a, or &root;(a + b). To indicate any other than the square root, a corresponding figure is placed over the sign; thus ∛a, indicates the third or cube root of a.
Webster 1913

Radical stress

  • (Elocution), force of utterance falling on the initial part of a syllable or sound.
Webster 1913

Radical vessels

  • (Anat.), minute vessels which originate in the substance of the tissues.
Webster 1913

uranyl radical

  • noun the bivalent radical UO2 which forms salts with acids
    uranyl group; uranyl.
WordNet

vinyl radical

  • noun a univalent chemical radical derived from ethylene
    vinyl; vinyl group.
WordNet