side groupn.

1823 J. Skelton Oxonia Antiqua Restaurata I. (facing Pl. 52) In the side group, under the west part of the building, are the portraitures of Dr. Longland, Bishop of Lincoln..and Dr. Charlton, Physician to King Charles the First.

1882 Cassell's Nat. Hist. VI. 134 They must be regarded as forming a sort of side group, allied to the Phasmidæ and Blattidæ.

1905 Amer. Naturalist 39 299 Only two eyes in side group, pars cephalica occupying entire front of cephalothorax.

1922 House Beautiful Nov. 472/2 One or two pieces [of furniture] will do much to connect the side groups and the main group, just as the intermediate interests in a picture lead the attention from the background to the centre of interest.

2006 Behavioral Ecol. & Sociobiol. 60 449/1 The order of presentation of the test hands was randomized within each sex by side group.

1898 Jrnl. Chem. Soc. 73 i. 456 One of the following initial changes may occur. (1) Migration of the OH group. (2) Migration of the O·SO₃H group as a whole. (3) Migration of a hydrogen atom of the ring, in the meta-position with regard to the side group.

1918 S. P. Sadtler et al. Textbk. Chem. Pharmaceut. & Med. Students (ed. 5) 519 The aromatic alcohols are isomeric with the phenols, but contain the OH in the side-group, so that they contain the group CH₂OH.

1959 New Scientist 19 Feb. 399/1 Propylene..can be turned into straight chains of polypropylene molecules, with all the arms or side groups projecting in the same direction.

2011 Proc. National Acad. Sci. U.S.A. 108 16884/2 The guanidinium side group in arginines can form multidentate hydrogen bonds with the phosphates of lipid head groups.