1. An instrument for measuring variations of temperature founded on the readiness and uniformity with which certain substances, especially mercury, expand or contract under an accession or diminution of heat.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• thermometor,
• thremometer,
• thermonoter,
• theremomter,
• thermomters,
• themometer,
• themometor,
• therometer,
• termomether,
• thermonmeter,
• thermomenter,
• thermonter,
• thermomerter,
• theometer,
• themoneter,
• theremometer,
• thermoeter,
• thermomiters,
• themomenter,
• thermomoter

• thermometric,
• thermometry.

The adjective form of the word "thermometer" is "thermometric".

The plural of the "thermometer" can be the "thermometers".

The singular of the "thermometer" can be the "thermometer".