interaction English · revision 6829

+ {{infobox|confidence=established|formation=derivation|attested=1807}}

+

+ ==Pronunciation==

+ * IPA: /ˌɪn.təˈɹæk.ʃən/ ''(UK)''; /ˌɪn.tɚˈæk.ʃən/ ''(US)''^(Wiktionary)

+

+ ==Etymology==

+ It is formed from [[inter-]] and [[action]],^(Etymonline) or from the verb [[interact]] and [[-ion]].^(SOED 2002)

+

+ ==Earliest recorded meaning==

+ Mutual or reciprocal action, the influence of things on each other: 1807 in Etymonline,^(Etymonline) 1832 in the OED,^(OED 1989) the mid-19th century in SOED.^(SOED 2002)

+

+ ==Semantic evolution==

+ The word spread from the general sense to persons acting on one another,^(OED 1989)^(SOED 2002) and the adjective ''interactional'' followed in 1886.^(OED 1989) In physics, an interaction is one of the fundamental ways in which particles and fields affect one another, such as the [[strong interaction|alt=strong]], [[weak interaction|alt=weak]], [[electromagnetism|alt=electromagnetic]] and [[gravitation|alt=gravitational]] interactions, a sense from the mid-20th century.^(SOED 2002)^(AHD)^(Collins 2023)

+

+ ==Timeline==

+ * 1807 – reciprocal action.^(Etymonline)

+ * 1886 – ''interactional''.^(OED 1989)

+ * mid-20th century – in physics, a fundamental interaction.^(SOED 2002)

+

+ ==Modern meaning==

+ ===Noun===

+ # [[mutual|alt=Mutual]] or [[reciprocal]] action or influence between people or things.^(AHD)^(Collins 2023)

+ # ''(physics)'' Any of the fundamental ways in which [[particle|alt=particles]] and fields act on one another.^(AHD)^(Collins 2023)

+

+ ==Word family==

+ * [[interactional]]

+ * [[interactionism]]

+ * [[gravitational interaction]]

+ * [[strong interaction]]

+ * [[weak interaction]]

+

+ ==Related words==

+ * [[interact]]

+ * [[interactive]]

+ * [[action]]

+ * [[act]]

+

+ ==References==

+ {{reflist}}