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protometabolism
protometabolism n. 
/ˌprəʊtə(ʊ)mɛˈtabəlɪz(ə)m/,
Brit. /ˌprəʊtə(ʊ)mᵻˈtabəlɪz(ə)m/
, /ˌprəʊtə(ʊ)mᵻˈtabəlɪz(ə)m//ˌprəʊtə(ʊ)mɛˈtabəlɪz(ə)m/U.S. /ˌproʊdoʊməˈtæbəˌlɪz(ə)m/
Biology a series of chemical reactions in a prebiotic system that resembles metabolism in living organisms; (also) metabolism in a primitive cell or organism./ˌproʊdoʊməˈtæbəˌlɪz(ə)m/ΚΠ
1962 Philos. Sci. 29 123 The instability of a complex dynamic system..may be compensated for..if it is able to appropriate elements and energy of other entities by a sort of proto-metabolism.
1984 S. W. Fox in A. Montagu Sci. & Creationism 220 (table) Protobiological characteristics of proteinoid microspheres... protometabolism... protogrowth (by accretion)... proliferation (protoreproduction).
2004 Cell Biol. Internat. 28 730/1 The programs themselves for production or assembly of every individual building block, biochemical pathway, and metabolic cycle needed for even the simplest protometabolism to develop.
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