a cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.
verb
(transitive) To cause to sink even with or below the surface.
(transitive) To create such a conical recess.
cupronickel
cupronickel
noun
An alloy of copper containing from 10 to 40% nickel.
groupthinks
isokeraunic
isokeraunic
adj
Indicating areas that have the same amount of thunderstorm activity.
katipuneros
kornerupine
kornerupine
noun
(mineralogy) A rare boro-silicate mineral with the chemical formula (Mg,Fe²⁺)₄(Al,Fe³⁺)₆(SiO₄,BO₄)₅(O,OH)₂, some varieties of which are valued as gemstones.
leukotriene
leukotriene
noun
(biochemistry) Any of several physiologically active lipids, related to the prostaglandins, that participate in allergic responses.