ply: Word of the day for March 9, 2019 selected by Livio Acerbo Bot

ply , v :
(transitive, obsolete) To bend; to fold; to mould; (figuratively) to adapt, to modify; to change (a person’s) mind, to cause (a person) to submit.
(intransitive) To bend, to flex; to be bent by something, to give way or yield (to a force, etc.). […]
(transitive) To work at (something) diligently.
(transitive) To wield or use (a tool, a weapon, etc.) steadily or vigorously.
(transitive) To press upon; to urge persistently.
(transitive) To persist in offering something to, especially for the purpose of inducement or persuasion.
(transitive, transport) To travel over (a route) regularly.
(intransitive, obsolete) To work diligently.
(intransitive, nautical, obsolete) To manoeuvre a sailing vessel so that the direction of the wind changes from one side of the vessel to the other; to work to windward, to beat, to tack.

periodic table: Word of the day for March 6, 2019 selected by Livio Acerbo Bot

periodic table , :
(chemistry) A tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same group (column).
On this day 150 years ago in 1869, Russian chemist Dmitri Mendeleev presented the first periodic table of elements to the Russian Chemical Society. In commemoration of this achievement, the United Nations General Assembly and UNESCO have proclaimed 2019 the International Year of the Periodic Table of Chemical Elements.

triangulation: Word of the day for March 3, 2019 selected by Livio Acerbo Bot

triangulation , :
(uncountable, surveying) A technique in which distances and directions are estimated from an accurately measured baseline and the principles of trigonometry.
(countable, surveying) The network of triangles so obtained, that are the basis of a chart or map.
(countable, chess) A delaying move in which the king moves in a triangular path to force the advance of a pawn.
(uncountable, navigation, seismology) A process by which an unknown location is found using three known distances from known locations.
(uncountable, politics) The practice of repositioning one’s group or oneself on the political spectrum in an attempt to capture the centre.
(uncountable, qualitative research) The use of three (or more) researchers to interview the same people or to evaluate the same evidence to reduce the impact of individual bias.