Pollen vs. Spore

Pollennoun

A fine granular substance produced in flowers. Technically a collective term for pollen grains (microspores) produced in the anthers of flowering plants. (This specific usage dating from mid 18th century.)

Sporenoun

A reproductive particle, usually a single cell, released by a fungus, alga, or plant that may germinate into another.

Pollennoun

(obsolete) Fine powder in general, fine flour. (16th-century usage documented by the OED.)

Sporenoun

A thick resistant particle produced by a bacterium or protist to survive in harsh or unfavorable conditions.

Pollenverb

To cover with, or as if with, pollen.

Sporeverb

To produce spores.

Pollennoun

Fine bran or flour.

Sporenoun

One of the minute grains in flowerless plants, which are analogous to seeds, as serving to reproduce the species.

Pollennoun

The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament.

Sporenoun

An embryo sac or embryonal vesicle in the ovules of flowering plants.

Pollennoun

the fine spores that contain male gametes and that are borne by an anther in a flowering plant

Sporenoun

A minute grain or germ; a small, round or ovoid body, formed in certain organisms, and by germination giving rise to a new organism; as, the reproductive spores of bacteria, etc.

Pollen

Pollen is a powdery substance consisting of pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of coniferous plants.

Sporenoun

a small usually single-celled reproductive body produced by many plants and some protozoans and that develops into a new individual;

‘a sexual spore is formed after the fusion of gametes’;

Spore

In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa.