# polaroplast

> English word · Noun

## Definitions
1. An organelle, in microsporidians, that swells with water, and exerts pressure to rupture the polar cap and evert the polar tube through which the sporoplasm escapes to infect the host.

## Etymology
From polar + -o- + -plast.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/polaroplast