injection English · revision 10608

+ {{infobox|confidence=established|formation=borrowing|attested=1541|origins=frm injection|origins=la injectio}}

+

+ ==Pronunciation==

+ * IPA: /ɪnˈdʒek.ʃən/^(Roach et al. 2011)

+

+ ==Etymology==

+ It is Old French iniection (14th century) or directly [[bor|la|iniectiō|t=a throwing in]],^(Etymonline)^(MWU 2024)^(NODE 1998) a noun from the past participle of inicere, to throw in or on (see [[inject]]),^(Etymonline)^(NODE 1998) from in-, in, and iacere, to throw.^(Etymonline)

+

+ ==Earliest recorded meaning==

+ The forcing of a fluid into the body, as with a syringe: the early 15th century in Etymonline;^(Etymonline) 1541 in the OED.^(OED 1989)

+

+ ==Semantic evolution==

+ The general sense, a throwing in, is from 1611, now rare.^(OED 1989) Scientific uses, such as injecting particles into a beam, are from 1945,^(OED 1989) placing a spacecraft into orbit from 1959,^(OED 1989) and the figurative sense, an injection of money or enthusiasm, from 1968.^(OED 1989) Fuel injection in engines is a technical use.^(Collins 2023)

+

+ ==Timeline==

+ * early 15th century – injecting fluid into the body.^(Etymonline)

+ * 1541 – first OED quotation.^(OED 1989)

+ * 1959 – injection into orbit.^(OED 1989)

+ * 1968 – figurative use.^(OED 1989)

+

+ ==Modern meaning==

+ ===Noun===

+ # The act of [[inject|alt=injecting]] a drug or other fluid into the body, as with a [[syringe]].^(AHD)^(Collins 2023)

+ # A dose of medicine given in this way.^(AHD)^(Collins 2023)

+ # The forcing of fluid under pressure into something, such as fuel into an engine.^(Collins 2023)

+ # An addition of something needed: ''an injection of cash''.^(OED 1989)

+

+ ==Word family==

+ * [[microinjection]]

+ * [[postinjection]]

+ * [[reinjection]]

+ * [[superinjection]]

+ * [[injective]]

+ * [[injection molding]]

+

+ ==Related words==

+ * [[inject]]

+ * [[reject]]

+ * [[project]]

+ * [[eject]]

+ * [[jet]]

+

+ ==References==

+ {{reflist}}