> as lemmas

1918 Railway Rev. (U.S.) 2 Feb. 162/2 It is only in extreme cases that anti-foam compounds are necessary and many of these are injurious to the boiler if used for long periods.

1958 Engineering 21 Feb. 253/1 The development of suitable anti-foams to increase the utilisation of coil area of existing plant.

2015 B. H. Lee Fund. Food Biotechnol. (ed. 2) i. 77 Foaming is controlled by mechanical foam destruction devices using single, rotary, or multiple rotating plates..or the addition of sterile antifoam agents.