Sentence examples for millimetres 1 from inspiring English sources

The first number indicates the magnification (e.g., 7×, meaning "7 times") and the second the diameter of the objective in millimetres (1 inch is about 25 millimetres).

Roman attempts to make flat glass by pouring slabs about 12 millimetres (1/2 inch) thick were unrewarding.

The body size ranges from 3 millimetres (1/8 inch) in tropical shallow-water species to 50 centimetres (20 inches) in deepwater species.

Most fringe mosses are one to three centimetres tall and have blackish-green, lance-shaped phyllids (leaves) about two millimetres (1/12 inch) long, which are sometimes tipped with a white hair.

The Monogenea range in length from 0.5 to 30 millimetres (0.02 to 1.2 inches).

The shells of both species reach about 200 millimetres (8 inches) in length.

Breccia, lithified sedimentary rock consisting of angular or subangular fragments larger than 2 millimetres (0.08 inch).

Adult spoonworms vary from a few to 600 millimetres (2 feet) in length.

Most turbellarians are less than five millimetres (0.2 inch) long, and many are microscopic in size.

The ostrich's egg, averaging about 150 millimetres (6 inches) in length by 125 millimetres (5 inches) in diameter and about 1.35 kilograms (3 pounds), is also the world's largest.

Some areas of high ground in the Lake District received more than 400 millimetres (1.3 feet) of  rainfall over 72 hours.