Scientists Say: Your weekly word

dictionaries

What’s that word? Find new science words every week with Scientists Say.

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Scientists Say (noun, “SIGH-en-tists Sae”)

Every week in our series Scientists Say, Science News Explores highlights a new science word, from absolute zero to zooxanthellae. Each word has a definition and is used in a sentence to help you understand the meaning. There’s even an audio recording, so you can hear exactly how to pronounce the term. All the words covered so far are listed below. Got a word you want to know about? Send an email to sns@sciencenews.org and put in a request!

A

Absolute zero

Acceleration

Accretion disk

Acid

Acidification

Acoustic

Adaptation

Addiction

Aerosol

Albedo

Algebra

Alkaline

Allele

Altitude

Amino acid

Amoeba

Ampere

Amphibian

Amusia

Amygdala

Anthropocene

Anxiety

Archaea

Archaeology

Artificial Intelligence

Asteroid

Astronaut

Astronomical interferometry

Atmosphere

Atoll

Atom

Atomic number

ATP

Aufeis

Autophagy

Autopsy

Avalanche

B

Bacteria

Base

Beakiation

Big Bang

Biofilm

Biomagnify

Bionic

Black hole

Blood-brain barrier

Body mass index

Bog

Bond

Brainwaves

Bromeliad

Bruxism

C

Calculus

Calorie

Camouflage

Capsaicin

Carbohydrate

Carbon capture

Carcinogen

Catalyst

Causation

Cellulose

Chemical

Chlorophyll

Chromosome

Circadian

Climate

Code

Cognition

Colloid

Comet

Compound eye

Confirmation bias

Connectome

Constellation

Continent

Convection

Copepod

Coprolite

Coral

Coriolis Effect

Corona

Correlation

Cortical homunculus

Cosmic microwave background

Crepuscular

Crystal

CT scan

Cyanide

Cyclone

D

Dark Energy

Dark matter

Data

Decay

Decibel

Deep brain stimulation

Deforestation

Denisovan

Desert

Diffraction

Digital footprint

Dinosaur

Dioxide

Dire wolf

Diurnal

DNA

DNA sequencing

Domestication

Doppler Effect

Drought

Dung

Dwarf planet

E

Earthquake

Echolocation

Eclipse

Ectoparasite

Ectotherm

eDNA

Egg

Electron

El Niño

Ellipse

Endocytosis

Endotherm

Engineering

Enzyme

Epidemic

Epidermis

Equation

Equinox

Estuary

Eukaryote

Eutrophication

Excitation

Excretion

Evolution

Exocytosis

Exomoon

Exoplanet

Experiment

Explosion

Extinction

Extremophile

Eyewall

F

Faraday cage

Fatty acid

Fault

Fermentation

Ferrofluid

Fertilize

Fiber optic cable

Firenado

Firewhirl

Fission

Fluorescence

Food web

Force

Forensics

Fossil

Fracking

Frequency

Frostbite

Fruit

Fulgurite

Fungi

Fusion

G

Galaxy

Gamma ray

Gas giant

Genealogy

Genetic engineering

Genus

Geometry

Geyser

Glacier

Glia

Global Positioning System

Glymphatic System

Goldilocks zone

GPS

Gradient

Graphene

Gravitational lens

Gravity

Guinea worm

Guttation

Gyroscope

H

Habitable zone

Hagfish

Haptic

Hardware

Herbivore

Hertz

Hibernaculum

Hibernation

Hippocampus

Histology

Hominid

Hoodoo

Hormone

Humidity

Hurricane

Hydrogel

Hyperthermia

Hypothermia

Hypothesis

I

Ichnology

Imaginary number

Inclusion

Inertia

Infection

Inflammation

Infrared

Inorganic

Insulin

Intron

Invasive species

Ion

Ionosphere

Irruption

Isotope

J

Jellies

Jet stream

Joule

Jurassic

K

Kakapo

Kelp

Kelvin

Keratin

Kevlar

Kidney

Kinetic energy

Krill

L

Lachryphagy

Lactose

La Niña

Larva

Laser

Latitude

Lava

LED

Light pollution

Light-year

Lignin

Liver

Loci

Locus

Longitude

Luminescence

Lymph

M

Machine Learning

Marcescence

Mass

Magma

Magnetism

Marsupial

Mean

Median

Medullary bone

Megalodon

Melatonin

Menstruation

Metabolism

Metal

Metamorphosis

Meteor

Meteorite

Meteorology

Methane

Microbiome

Microgravity

Microplastic

Migration

Mineral

Mitochondrion

Mitosis

Möbius strip

Mode

Model

Molecule

Momentum

MRI

Multiverse

Mummy

Muon

Mutation

Mycelium

Myopia

N

Naloxone

Narcotic

Neandertal

Nebula

Necropsy

Nectar

Nematocyst

Nematode

Neurodivergent

Neuron

Neurotransmitters

Neutron

Neutron star

Neutrophil

Niche

Nicotine

Nocturnal

Nucleus

Nutrient

O

Obesogens

Octopod

Okapi

Olfactory

Oort cloud

Opioid

Optogenetics

Orbit

Organic

Organelle

Osmosis

Outbreak

Outlier

Oxidation

Ozone

P

Paleontology

Pandemic

Papillae

Parasite

Parabola

Pareidolia

Parthenogenesis

PFAS

Phloem

Pi

Piezoelectric

Peptide

Periodic table

Permafrost

Petrichor

pH

Photochromic

Photon

Photovoltaic

Pigment

Placebo

Planet

Plankter

Plasma

Plastic

Plastisphere

Poisonous

Polarized light

Pole

Pollen

Pollution

Polymer

Potential energy

Power

Prairie

Precipitation

Predator

Prehistoric

Prey

Primate

Prime number

Protein

Protist

Proton

Proxima b

Proxima centauri

Pulsar

Q

Quantum

Quarantine

Quark

Quartile

Quasar

Quoll

R

Rabies

Radar

Radiation

Radioactive

Radio waves

Rare earth element

Receptor

Red dwarf

Reduction

Refraction

Relapse

Remission

Replication

Respiration

Richter Scale

Rime ice

Ring of fire

RNA

Robot

Rubisco

Runoff

S

Salinity

Salt

Satellite

Saturated fat

Savanna

Seismology

Semiconductor

Silicon

Silicone

Social

Software

Solar

Solar cycle

Solar wind

Solstice

Solution

Space weather

Spaghettification

Species

Speleology

Sperm

Stalactite

Stalagmite

Statistical significance

Stereoscopy

Stereotype

Stomata

Strain

Stratigraphy

Sublimation

Supercomputer

Superconductor

Supercontinent

Supercool

Supernova

Surface tension

Symbiosis

Synapse

T

Taphonomy

Tectonic plate

Telescope

Theory

Thought experiment

Tinnitus

Tonsils

Torpor

Torque

Toxin

Transit

Trauma

Triclosan

Tsunami

Tundra

Typhoon

U

Ultrasonic

Ultrasound

Umami

Uncertainty

Understory

Unsaturated fat

Upwelling

Urushiol

V

Vacuole

Vaccine

Valence electron

Vampire

Variable

Vector

Venomous

Ventral striatum

Vertebrate

Vestigial

Virtual reality

Virulence

Virus

Viscosity

Voltage

W

Waterspout

Watt

Wavelength

Weather

Weather bomb

Wetland

Wormhole

X

X-axis

X-ray

Xylem

Y

Y-axis

Yeast

Yellow dwarf

Yottawatt

Z

Zika

Zirconium

Zoonosis

Zooplankton

Zooxanthellae

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