Expressed as a percentage, it's all "relative" this, the water vapor in the air at any given time & temp
Humidity
This unit counted by dieters properly has "kilo" in front of it
Calorie
A pestle is used to grind spices & other foods; this, pestle's partner, is the bowl in which the food is ground
Mortar
The winner of the battle for survival per Darwin
Fittest
In the 70s: "When the president does it, that means that it is not illegal"
Nixon
When frigid air moves under warm air, pushing it up & producing heavy rain or snow, it forms one of these 2-word zones
Cold Front
The name of a Russian scientist gives us this adjective for an unthinking reaction
Pavlovian
Beans with equine names include appaloosa & this kind
Pinto
A short, half-suppressed laugh or giggle
Titter
In the 1970s: "Our long national nightmare is over"
Ford
In April 2017 the governor of this large state declared an end to the drought emergency... for now
California
We don't love this "L.A." when it makes our muscles burn during exercise
Lactic acid
This brilliant yellow ultra-spendy spice is sold powdered or as "threads" (the flower's stigma)
Saffron
Miss Manners is an expert on this standard of appropriate behavior in social settings
Etiquette
"I do not expect the Union to be dissolved--I do not expect the house to fall--but I do expect it will cease to be divided"
Lincoln
Most weather occurs in this lowest "sphere" of the Earth's atmosphere that extends up to around 12 miles
Troposphere
10-letter word for the conversion of atoms into electrically charged ones
Ionization
British roast beef should really be served with this, sort of a popover-soufflé hybrid
Yorkshire Pudding
This women's underskirt has been worn since the Middle Ages
Petticoat
In the early 20th c.: "I took the canal zone, & let Congress debate, & while the debate goes on the canal does also"
Teddie Roosevelt
It's the term for a warm layer above a cool one when going higher in the atmosphere; the reverse is what's normal
An inversion Layer
Quasar MSH 04-12 is visible by telescope at a distance of 5 billion of these
Lightyears
Manzanilla is a green Spanish one of these, a product of a Mediterranean tree
Olive
Crenels are the empty parts & merlons are the solid parts in this structure, a type of parapet
A battlement
In an early 20th c. message to Congress: "We have stood apart, studiously neutral"
Wilson