Term: rocker arm: a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine
Candidate hypernym: lever: a rigid bar pivoted about a fulcrum → 1
Candidate hypernym: keyhole: the hole where a key is inserted → 0
Candidate hypernym: neuralgia: acute spasmodic pain along the course of one or more nerves → 0
Candidate hypernym: ankle brace: a brace worn to strengthen the ankle → 0
Candidate hypernym: ebbtide: the tide while water is flowing out → 0
Candidate hypernym: mailboat: a boat for carrying mail → 0
Candidate hypernym: vapor density: the density of a gas relative to the density of hydrogen → 0
Candidate hypernym: traveler's joy: vigorous deciduous climber of Europe to Afghanistan and Lebanon having panicles of fragrant green-white flowers in summer and autumn → 0
Candidate hypernym: pitcher: the position on a baseball team of the player who throws the ball for a batter to try to hit → 0
Candidate hypernym: skink: alert agile lizard with reduced limbs and an elongated body covered with shiny scales; more dependent on moisture than most lizards; found in tropical regions worldwide → 0
Candidate hypernym: facet plane: the plane of a facet of an object (as of a cube) → 0