a part or organ with same structure and evolutionary origin as something else but now having a different function
homotype in American English
(ˈhouməˌtaip, ˈhɑmə-)
noun
Biology
an organ or part having a structure similar to that of another organ or part; homologue
Word origin
[1830–40; homo- + type]This word is first recorded in the period 1830–40. Other words that entered Englishat around the same time include: format, isometric, orientation, rococo, stroboscopehomo- is a combining form appearing in loanwords from Greek, where it meant “same” (homology). On this model, homo- is used in the formation of compound words (homomorphic). Other words that use the affix homo- include: Homoousian, homodyne, homogamous, homologous, homotopy