-thermcomb. form

Primary stress is retained by the usual stressed syllable of the preceding element and vowels may be reduced accordingly.

Origin: Either (i) a borrowing from French. Or (ii) a borrowing from Greek. Etymons: French -therme; Greek -θερμος.

Etymology: < (i) French -therme or its etymon (ii) ancient Greek -θερμος (in e.g. ὀλιγόθερμος having little heat), combining form of θερμός hot (see therm n.²). Compare German -therm , scientific Latin -thermus . Compare -thermous comb. form.Found from the 19th cent., e.g. isotherm n., haematherm n., earliest in borrowings or adaptations of French words.

1. Forming nouns relating to the measurement of temperature and to the production of heat in chemical, physical, or industrial processes, as exotherm n., isogeotherm n., etc.

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2. Biology. Forming nouns denoting organisms having body temperature regulation or environmental temperature requirements of the type specified by the first element, and adjectives designating such organisms, as ectotherm n., meiotherm n. and adj., poikilotherm n. and adj., etc.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online September 2018).

单词	-therm
释义	-thermcomb. form Primary stress is retained by the usual stressed syllable of the preceding element and vowels may be reduced accordingly. Origin: Either (i) a borrowing from French. Or (ii) a borrowing from Greek. Etymons: French -therme; Greek -θερμος. Etymology: < (i) French -therme or its etymon (ii) ancient Greek -θερμος (in e.g. ὀλιγόθερμος having little heat), combining form of θερμός hot (see therm n.²). Compare German -therm , scientific Latin -thermus . Compare -thermous comb. form.Found from the 19th cent., e.g. isotherm n., haematherm n., earliest in borrowings or adaptations of French words. 1. Forming nouns relating to the measurement of temperature and to the production of heat in chemical, physical, or industrial processes, as exotherm n., isogeotherm n., etc. Categories » 2. Biology. Forming nouns denoting organisms having body temperature regulation or environmental temperature requirements of the type specified by the first element, and adjectives designating such organisms, as ectotherm n., meiotherm n. and adj., poikilotherm n. and adj., etc. This is a new entry (OED Third Edition, November 2010; most recently modified version published online September 2018). < comb. form
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