air condensern.

1815 H. Holland Trav. Ionian Isles ix. 182 After I had charged the air-condenser of the other [gun], he took it from my hand, loaded it with bullets, and discharged it upwards.

1839 Lancet 13 July 583/2 Under no circumstances ought the tube from the air-condenser to be ‘accurately fitted’ to the catheter.

1841 W. Strickland et al. Rep. Public Wks. U.S.A. 67 The air condensers are usually a series of upright pipes, connected at the top and bottom, having vents at the lower bends for the discharge of the condensed matters.

1902 U.S. Patent 714,445 1/1 We..have invented certain new and useful Improvements in Air-Condensers for Steam-Propelled Cars and vehicles.

1907 G. M. Norman Systematic Pract. Org. Chem. i. iii. 9 Melt 50 grammes of ammonium acetate in a basin, pour into a distilling flask, fitted with..a long tube attached to the delivery tube, to act as an air condenser.

1992 Jrnl. Appl. Ecol. 29 64 Air condensers (26 cm long) were fitted into the tubes and they were placed in a Grant digestion block and heated to 100°C for 1h.

1878 Rep. Brit. Assoc. 487 A galvanometric arrangement of sufficient sensibility to measure the small capacity of such an air condenser.

1936 R. S. Glasgow Princ. Radio Engin. x. 301 The frequency is adjusted by changing the constants of the tuned circuit by using a tapped coil in conjunction with a decade condenser shunted by a variable air condenser.

2006 Jrnl. Acoustical Soc. Amer. 119 320 The substitution-based method..uses a 1/4-in. air-condenser pressure microphone as a known reference.