General

General

General nature or nature terms.

Industry: Natural environment

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General

systolic pressure

Biology; General

The peak blood pressure when ventricles contract.

suberin

Biology; General

Waxy, waterproof chemical in some plant cells, notably cork (in stems) and endodermis cells (in roots).

silica

Biology; General

Silicon dioxide.

subspecies

Biology; General

A taxonomic subdivision of a species; a population of a particular region genetically distinguishable from other such populations and capable of interbreeding with them.

sclerenchyma

Biology; General

One of the three major cell types in plants; have thickened, rigid, secondary walls that are hardened with lignin; provide support for the plant. Sclerenchyma cells include fibers and sclereids. ...