Used other than figuratively or idiomatically: see open, attack: to begin attacking, to commence battle. / (cricket) Of a bowler: to bowl one of the first two overs.

(physics) the attraction between opposite charges due to Coulomb force

Any theory attempting to explain the process by which individuals explain the causes of behaviour and events.

a perfume made from an essential oil extracted from rose flowers

An essential oil extracted from flowers. / A perfume made from this oil.

(aeronautics) The angle between the chord line of an airfoil and the airflow over it; one of the determiners of the amount of lift produced by an airfoil.

Tried, with the connotation of failure.

simple past tense and past participle of attempt

(idiomatic, intransitive) To attend; to be attentive; to focus one's attention.

(fencing) An attack on the opponent's blade, e.g. beat, expulsion, pressure