thermographyn.

1840 R. Hunt in London, Edinb., & Dublin Philos. Mag. 17 268 A new..field of..inquiry, which may..end in..the establishment of the new art of Thermography.

1842 R. Hunt in London, Edinb., & Dublin Philos. Mag. 21 466 I..proposed the name of Thermography, to distinguish it from Photography.

1848 Art-union Mar. 71 From the circumstance that all the results..exhibit a very close relation between the surfaces employed and their powers of radiating heat, the term Thermography or Heat-drawing has been employed.

1875 Ure's Dict. Arts, etc. (ed. 7) Thermography, a term proposed..to express the ‘Art of Copying Engravings, &c. on Metal Plates’; the effect being due..to the influence of heat-radiations.

1883 J. F. Campbell Thermogr. i. §3. 11.

1883 J. F. Campbell Thermogr. i. §3. 12 Because light does not act upon the materials used, dark cameras are not needed in thermography.

1957 R. Lawson in Canad. Services Med. Jrnl. 13 519 It was apparent that ‘thermography’ or heat imaging by suitable equipment might have a very important place in the early diagnosis of breast lesions.

1963 Science 24 May 873/2 The human body is an ideal subject for thermography.

1969 New Scientist 8 May 276/1 Thermography is a completely harmless method in which the patient is ‘photographed’ by her own body heat.

1971 Daily Tel. 22 Jan. (Colour Suppl.) 22/2 Aerial thermography has been used to locate old mineshafts, and coal seams burning underground.

1977 Time 20 June 48/1 Thermography, or heat scanning, concentrates on looking for infra-red radiation to find tumors.

1928 Inland Printer Nov. 77/2 This department protested long ago against the names given to imitation intaglio printing... Leaders in the group of New York printers doing such work have tentatively adopted the name ‘thermography’, and it is to be hoped it will come into general use.

1969 L. N. Williams & M. Williams Techniques Philately ix. 53 If..the design..stands up..the proudness results from the different printing methods known loosely as ‘recess printing’, or ‘embossing’—or else from a printing technique recently imported into stamp production, ‘thermography’.

1982 A. Barr & P. York Official Sloane Ranger Handbk. 55/1 To detect the cheaper bumps of the modern process, thermography, scratch it with your nail. Thermography is brittle.