hard base

hard base

[′härd ¦bās]
(chemistry)
A Lewis base (electron donor) that has high polarizability and low electronegativity, is easily oxidized, or possesses lowlying empty orbitals; some examples are H2O, HO-, OCH3-, and F-.
(ordnance)
A launching base that is protected against a nuclear explosion.
References in periodicals archive ?
Subcutaneous injection ports consists of a silicone injection membrane on a hard base. Through subcutaneous injection port physician prescribed medications can be directly injected into the subcutaneous tissue using a standard needle and syringe, an injection pen, or other manual injection device.
This premium multilayer non-stick coating features a patented extra-thick hard base, reinforced with titanium particles, making it built for intensive everyday use up to 12 years.
In Sardinia, the main differences are that the roads always have a hard base, they're narrower and there are lots of big rocks at the sides that you need to avoid.
Its Titanium Excellence non-stick coating is extra-durable and highly resistant thanks to an exclusive, ultra-thick hard base in titanium and a protective coating reinforced with titanium particles, making this coating lasts up to 3 times longer !
The cheesecake was very nice with a very hard base and soft gooey topping, with the chocolate honeycomb mixed in randomly.
The high price is due to the brand's exclusive and patented hard base coating that is reinforced with titanium particles.
Fraser Wilkin, of snow forecast website weathertoski.co.uk, said: "The high avalanche risk is because the snow has been falling on a very thin, hard base.
They would be built by pumping sand atop some hard base made of rock, concrete or other material, he said.
Applications for this new OM grade of TPE are targeted for products where an extra strong hard base material and a soft touch overmolded outer surface are required.
Applications for this OM grade of TPE are targeted for products where an extra strong hard base material and a soft touch overmolded outer surface are required.