smellscape noun [C]
/ˈsmel.skeɪp/
a collection of the different smells associated with a particular place

“A smellscape is the olfactory equivalent of a landscape,” she says. “We spend most of our time walking around, we see things and we take about 80% of our information from that. But we’ve got four other senses, all of which contribute. And smell’s one of those senses that we pay very little heed to, but forms a huge part of how we absorb and how we know the world.”
[Sky News, 17 April 2017]

sun pillar noun [C]
UK /ˈsʌn.pɪl.əʳ/ US /ˈsʌn.pɪl.ɚ/
a narrow column of light that extends upwards or downwards from the Sun

“We cannot forecast optical phenomena,” a spokesperson said. “Sun pillars look very pretty if you are lucky enough to spot one. They are formed by the light reflecting off the ice crystals in high wispy clouds. The formation has to be just right for it to take place and we cannot predict it.”
[The Telegraph, 6 April 2017]

thundersnow noun [U]
UK /ˈθʌn.də.snəʊ/ US /ˈθʌn.dɚ.snoʊ/
a thunderstorm with snow instead of the more usual heavy rain

Thundersnow occurs far less frequently than a normal storm. This is because it is only able to occur during a couple of months of the year. It is incredibly rare in the UK. In the US, it is more common – they have an average of 6.3 instances of thundersnow a year.
[The Telegraph, 17 January 2017]

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