self-trackingn.
/ˌsɛlfˈtrakɪŋ/, U.S. /ˌsɛlfˈtrækɪŋ/ The action or practice of monitoring one's own activity, diet, health, etc., now esp. for the purpose of improving one's own well-being and typically by means of recording data in a smartphone.
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1970 Behavior Therapy 11 585 Will self-tracking of CO [sc. carbon monoxide] result in reduced smoking?
1993 C. Baldwin & C. Orange New Life New Friends x. 208 Self-tracking is a commitment to self-honesty, learning to ask yourself probing, specific questions that challenge thoughts and behavior.
1999 Marketing Health Services (Nexis) Spring 15 Self-tracking by consumers..can serve to remind them of the value they have gained.
2010 E. Ward Chow Hounds x. 199 Self-tracking was an important aspect of maintaining a healthy weight.
2015 Science 11 Dec. 1307/1 Harnessing the self-tracking trend to promote healthier behavior is far from a sure bet.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
self-trackingadj.
/ˌsɛlfˈtrakɪŋ/, U.S. /ˌsɛlfˈtrækɪŋ/ Designating a trailer whose axles are designed to pivot automatically so that it closely follows the path of the vehicle pulling it; designating such an axle.
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1916 Automobile 11 May 857/1 They will be compelled to see the ‘self tracking tractor train’ of the motor truck and..learn how to pull their trains in the direction of least resistance.
1970 Financial Times 12 Aug. 9/5 The approximate capital cost is..about £20,000 for a unit towing two self-tracking trailers.
1991 What's New in Design Sept. 50/3 Simple layouts can be combined with the advantages of self-tracking axles, which include improved manoeuvrability.
2015 Big Rigs (Nexis) 11 Sept. 24 GRS Towing's latest Tilt 'n' Slide is optioned with..quad axle suspension with self-tracking axles.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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n.1970adj.1916