spacer noun¹. ['speɪsǝ] M19.
[from SPACE verb + -ER¹.]
1. a. A device used for making a space, interval, or division; spec. a mechanism for spacing words. M19.
b. Archaeology. More fully spacer-plate. A flat bead perforated with several holes in the same plane, by which the threads of a necklace with several strands are held apart. E20.

2. A person who or thing which spaces things in a particular manner. rare. L19.

3. Biology. A section of DNA which is not represented in the final RNA transcript, separating two sections which are. L20.

Comb.:
spacer gel a part of the gel used in electrophoresis, which functions to concentrate the sample prior to separation; spacer-plate: see sense 1b above.

[TahlilGaran] English Dictionary ▲

spacer noun². ['speɪsǝ] M20.
[from SPACE noun + -ER¹.]
1. = spaceman (b) s.v. SPACE noun. M20.

2. A spaceship, a spacecraft. M20.

[TahlilGaran] English Dictionary ▲