bloom

bloom¹

1. a fine whitish coating on the surface of fruits, leaves, etc., consisting of minute grains of a waxy substance

2. Ecology a visible increase in the algal constituent of plankton, which may be seasonal or due to excessive organic pollution

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bloom²

a rectangular mass of metal obtained by rolling or forging a cast ingot

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bloom [blüm]

(botany)

An individual flower. Also known as blossom.

To yield blossoms.

The waxy coating that appears as a powder on certain fruits, such as plums, and leaves, such as cabbage.

(ecology)

A colored area on the surface of bodies of water caused by heavy planktonic growth.

(engineering)

Fluorescence in lubricating oils or a cloudy surface on varnished or enameled surfaces.

To apply an antireflection coating to glass.

(geology)

blossom

(graphic arts)

A milky or foggy defect that may appear on the surface of a varnished painting; caused by moisture.

(materials)

Crystals formed on the surface of treated wood by exudation and evaporation of the solvent in preservative solutions.

(metallurgy)

A semifinished bar of metal formed from an ingot and having a rectangular cross section exceeding 36 square inches (232 square centimeters).

To hammer or roll metal in order to make its surface bright.

slag

(mineralogy)

efflorescence

(optics)

Color of oil in reflected light, differing from its color in transmitted light. Also known as fluorescence.