periscope
noun/ˈpɛrəskoʊp/
Frequency rank: #14,783 most common English word
Meaning
an optical instrument using mirrors or prisms to allow observation from a concealed or submerged position.
Example sentence
The submarine crew used periscope to observe the surface without surfacing.
Synonyms & related words
Practice this word in the quiz
More words in ranks 14,701–14,800
- papayaA large tropical fruit with orange flesh and black seeds, grown on a tall plant.
- partisanshipStrong, often uncritical support for a particular political party or cause.
- peachyInformal for 'fine' or 'excellent'; used to express that something is satisfactory or going well.
- pearlyhaving a soft, lustrous appearance like a pearl; smooth and iridescent.
- pensionerA person who receives a pension, especially a retired person living on a regular payment from a former employer or the government.
- perniciousHaving a harmful effect, especially in a gradual or subtle way.
- perversionA distortion or corruption of something from its original or correct form; an abnormal or unacceptable form of behavior.
- phylogeneticRelating to the evolutionary development and history of a species or group of organisms.
- physiotherapyTreatment of injury or disease through physical methods such as exercise, massage, and heat, rather than medication or surgery.
- pigmentationThe natural coloring of a living organism's skin, hair, or other tissue, produced by pigments.