ˈpoikilo-
a formative element from Gr. ποικίλος variegated, various, used in modern scientific terms (in some of which the Latinized form pœcilo- is preferred):
ˈpoikiloˌblast, (a) = poikilocyte (Syd. Soc. Lex.); (b) (also pœcilo-) Petrol., each of the inclusions in a poikiloblastic rock; ˌpoikiloˈblastic a. (also pœcilo-) Petrol. [ad. G. poikiloblastisch (F. Becke 1903, in Compt. Rend. IX Sess. Congr. Géol. Internat. (1904) II. 570): see -blast], applied to the structure or texture of a metamorphic rock, or to the rock itself, in which small crystals of an original mineral occur within crystals of its metamorphic product (cf. poikilitic a. 2); ˈpoikiloˌcyte, a name for red blood-corpuscles of irregular shape, elongated, pyriform, etc. (Syd. Soc. Lex.); so ˌpoikilocyˈtosis, the condition of the blood when it contains poikilocytes.
| 1944 Trans. R. Soc. Edin. LXI. 225 Accessories are apatite and sphene,..the latter in rounded red-brown pleochroic *poeciloblasts in the same minerals. 1969 A. Spry Metamorphic Textures 169 (heading) Poikiloblasts. |
| 1920 A. Holmes Nomencl. Petrol. 187 *Poikiloblastic, a metamorphic texture due to the development, during recrystallisation, of a new mineral around numerous relics of the original minerals, thus simulating the poikilitic texture of igneous rocks. 1932 A. Harker Metamorphism xiii. 191 (caption) A large porphyroblast of green horn⁓blende showing typical pœciloblastic or sieve-structure. 1954 H. Williams et al. Petrography ix. 168 (caption) Poikiloblastic (sieve) texture in skarn, Doubtful Sound, New Zealand. 1969 A. Spry Metamorphic Textures vi. 170 Inclusions increase the total free energy and thus a poikiloblastic crystal is not in its most-stable..condition. |
| 1897 Allbutt's Syst. Med. IV. 578 Irregular forms of red corpuscles which are generally included under the name of *poikilocytes. 1899 J. Cagney tr. Jaksch's Clin. Diagn. i. (ed. 4) 42 Gräber believes that the poikilocytes do not exist in the circulating blood. |
| 1880 A. Flint Princ. Med. 62 The name *poikilocytosis has been proposed to designate the condition of blood in which the corpuscles present manifold variations in shape. |