Home
PLUS
AI Generator Tools
New
AI Image Generator
Delivering creativity at your imagination.
New
AI Image Upscaler
Scale your images up to 4x a click!
New
AI Generative Fill
Remove and replace objects in seconds!
New
AI Background Blur
Blur backgrounds to make subjects stand out!
AI Background Remix
Professional backgrounds for your products.
AI Image Extender
Extend your images to different ratios.
AI Writer
Best writing companion for the digital age.
AI Background Remover
Remove unwanted backgrounds easily.
123RF PLUS
Get creative solutions powered by cutting-edge AI tools.
Go PLUS
We have 2 new AI tools!
Check out AI Image Upscaler and AI Generative Fill now!
OK
Free Images
Stock
Photos
Vectors
Video
Audio
Fonts
Corporate+
Pricing
Support
en
English
Deutsch
Español
Français
Magyar
Italiano
日本語
한국어
Nederland
Język polski
Português (PT)
Русский язык
简体中文
繁體中文
Türkçe
Login
Go unlimited
Video
Options
PREMIUM
All Images
Photos
Vectors
Video
Audio
Fonts
FREE
PLUS
Science word meaning in dictionary, system of knowledge, observation and testing
Play Video
Remaining Time
-0:00
Play
Progress: NaN%
Playback Rate
1.00x
Non-Fullscreen
1080p
MOV
1920 x 1080
29.97fps
161.85 MB
Download
motortionfilms
Follow
Preview
Share
X
Facebook
Pinterest
Report
Why are you reporting this?
Intellectual Property - Copyright and Trademarks
Violates 123RF Policies
Repetitive/Irrelevant Content
Inappropriate/Distasteful Content
Corrupted Content
Please describe the issue in detail.
Cancel
Submit
125992377
8.04s
Stock Video
KEYWORDS
teacher
page
dictionary
learn
up
intelligence
language
definition
foreign
system
study
explanation
innovation
book
close
knowledge
meaning
science
information
energy
research
paper
student
alphabet
chemistry
pointing
education
idea
medical
pharmacy
experiment
laboratory
medicine
text
technology
macro
industry
word
closeup
equipment
close up
english
glossary
grammar
interpretation
linguistics
pronunciation
terminology
transcription
vocabulary