Loading…
Loading…
Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Lupercus
A Roman god associated with fertility and purification, honoured at the Lupercalia.
Lust
Uncontrolled sexual desire that dominates a person's choices; also called kaam.
Lustration
A ritual purification. Livy describes Servius purifying the assembled citizen army through sacrifice at the completion of the census.
Lustre
The light-reflecting quality of a textile surface that gives it a glowing or glossy appearance.
Lustrous
Shiny, because the surface reflects light well; freshly cut or polished metals are lustrous.
Lustrum
A five-year period associated with the Roman census; the plural is lustra.
Luteinising hormone (LH)
A pituitary hormone whose surge stimulates the release of an egg from an ovary.
Luteinising hormone (LH)
A hormone released by the pituitary gland that triggers ovulation.
Luxury tax
A tax on selected non-essential goods, such as furs, which raises government revenue and generally increases the cost of buying them.
Lycoris
The poetic name associated with Cytheris as the beloved of the Roman poet Cornelius Gallus.
Lycurgus
The traditional Spartan lawgiver to whom Plutarch attributes reforms of education and marriage.
Lymphocyte
A white blood cell that produces antibodies which bind to particular pathogens.
Lymphocyte
A type of white blood cell that produces antibodies; some also produce antitoxins.
Lynching
Killing by a mob without a lawful trial, used to terrorise African Americans.
Lyre
A stringed musical instrument. Orpheus plays one while singing his appeal to the rulers of the underworld.
Lyric
A short poem expressing a speaker’s personal feelings, often with musical qualities created by rhythm and rhyme.
Lyric poem
A poem that expresses a speaker’s personal feelings, often with musical qualities.
Lyric poetry
Poetry associated with song and composed in patterned verse forms, often exploring feelings, values or particular occasions rather than telling an extended heroic story.
Lysenkoism
Scientifically flawed agricultural ideas associated with Soviet scientist Trofim Lysenko, including planting seeds unusually deeply and closely together.
Lysis
The bursting open of a cell, releasing the new virus particles inside it.
Lysogenic pathway
A viral pathway in which viral DNA is incorporated into the host cell’s DNA and copied as that cell divides, without immediately producing new virus particles.
Lysozyme
An enzyme found in tears that breaks down and kills bacteria on and around the eyes.
Lysozymes
Enzymes found in tears that break down bacteria.
Lytic pathway
A viral pathway in which new virus particles are made and released, often when the host cell bursts.
Ma’ad
The return to Allah through resurrection and judgement after death.
MAC address
A physical address embedded within a device’s network adapter that identifies that adapter on a network.
MAC address filtering
Allowing or blocking a device’s access to a network according to its network adapter’s MAC address.
Macedonian heritage
The background, traditions and identity inherited from earlier generations; Cleopatra belonged to a Macedonian ruling family.
Machiavel
A conventional scheming villain in Renaissance drama who uses calculation and deception to gain power.
Machinability
How readily a material can be cut and shaped using machine tools.
Create a free account to keep every note you open and track your progress.