diatom's Usage Examples:

diatom assemblages suggest a little or no change in water acidity.

4; these gases have diatomic molecules, a fact capable of demonstration by other means.

The limestones contain Globigerina and other Foraminifera, the siliceous beds are made of Radiolaria, sponge spicules and diatoms, while the red clay closely resembles the red clay of the deepest parts of the oceans.

Hexagonal areoles giving a honeycomb effect can be seen in the three-sided diatom Triceratium favus.

diatomic oxygen into the atmosphere thus making Mars inhabitable.

Ordinary diatoms and desmids may be mounted on mica, as above described, by putting a portion in a vessel of water and exposing it to sunlight, when they rise to the surface, and may be thus removed comparatively free from dirt or impurity.

Most important are the fine structures of diatoms such as Surirella gemma and Amphipleura pellucida or artificial fine divisions as in a Nobert's grating.

An early step accomplished by Ostwald in this direction is to define ozone in its relation to oxygen, considering the former as differing from the latter by an excess of energy, measurable as heat of transformation, instead of defining the difference as diatomic molecules in oxygen, and triatomic in ozone.

Zelinkia and Philosyrtis are two slightly aberrant forms described by Giard from certain diatomaceous sands.

Vegetable plankton in sunlight can reverse this process, assimilating the carbon of the carbonic acid and restoring the oxygen to solution, as was proved by Martin Knudsen and Ostenfeld in the case of diatoms.

It has been found possible to grow pure cultures of various diatoms, and by feeding these to delicate larvae kept in sterilized sea-water, great successes have been attained.

pennate diatoms over flagellates.

The yellow brown stellate colonies are an incredibly beautiful sight and are far better seen freshly collected than cleaned in the manner of diatoms.

Synonyms:

class Diatomophyceae, Bacillariophyceae, phytoplankton, alga, class Bacillariophyceae, Diatomophyceae, algae,

Antonyms:

None