in situ

American  

[in sahy-too, -tyoo, see-, in sit-oo] / ɪn ˈsaɪ tu, -tyu, ˈsi-, ɪn ˈsɪt u /

adverb

1. situated in the original, natural, or existing place or position.

   The archaeologists were able to date the vase because it was found in situ.

2. Medicine/Medical.

   1. in place or position; undisturbed.

   2. (especially of a malignant tumor) in a localized state or condition.

      carcinoma in situ.

---

in situ British  

/ ɪn ˈsɪtjuː /

adverb

1. in the natural, original, or appropriate position

2. pathol (esp of a cancerous growth or tumour) not seen to be spreading from a localized position

---

in situ Cultural  

1. In the original place or arrangement: “The body was left in situ until the police arrived.” From Latin, meaning “in position.”

---

Etymology

Origin of in situ

First recorded in 1730–40, in situ is from Latin in sitū literally, “in place”

Example Sentences

Ms Ackord said any prospective buyer "would want to be in situ by the summer", suggesting a sale could be completed before the pier's busiest trading period.

From BBC

This approach, known as in situ resource utilization, allows explorers to use materials already available on another planet rather than transporting everything from Earth.

From Science Daily

The team expects progress in the near future, especially as in situ resource use becomes increasingly important for long duration missions to the Moon and Mars.

From Science Daily

Additional evidence from in situ Raman spectroscopy and density functional theory calculations supports the proposed mechanism, confirming that the engineered interface efficiently drives oxygen evolution.

From Science Daily

"We have never seen a ten-meter-size asteroid in situ, so we don't really know what to expect and how it will look," says Santana-Ros, who is also affiliated with the University of Barcelona.

From Science Daily

Related Words

• situated